ⓘ Enema. An enema, also known as a clyster, is an injection of fluid into the lower bowel by way of the rectum. Also, the word enema can refer to the liquid so in ..


ⓘ Enema

An enema, also known as a clyster, is an injection of fluid into the lower bowel by way of the rectum. Also, the word enema can refer to the liquid so injected, as well as to a device for administering such an injection.

In standard medicine, the most frequent uses of enemas are to relieve constipation and for bowel cleansing before a medical examination or procedure; also, they are employed as a lower gastrointestinal series also called a barium enema, to check diarrhea, as a vehicle for the administration of food, water or medicine, as a stimulant to the general system, as a local application and, more rarely, as a means of reducing temperature, as treatment for encopresis, and as a form of rehydration therapy proctoclysis in patients for whom intravenous therapy is not applicable.

In other contexts, enemas are used by some alternative health therapies, used for enjoyment, chiefly as part of sexual activities, but also in sadomasochism, as well as simply for pleasure, used to intoxicate with alcohol, used to administer drugs for both recreational and religious reasons, and used for punishment.


1.1. Medical usage Acute treatments

As bowel stimulants, enemas are employed for the same purposes as orally administered laxatives: To relieve constipation; To treat fecal impaction; To empty the colon prior to a medical procedure such as a colonoscopy. A large volume of enema can be given to cleanse as much of the colon as possible of feces. However, a low enema is generally useful only for stool in the rectum, not in the intestinal tract.

Such enemas mechanism consists of the volume of the liquid causing rapid expansion of the intestinal tract in conjunction with, in the case of certain solutions, irritation of the intestinal mucosa, resulting in powerful peristalsis and a feeling of extreme fecal urgency. The enema is retained until there is a tremendous, uncontrollable urge to defecate, at which time the recipient may expel any fecal matter loosened by the instilled solution together with the solution itself.


1.2. Medical usage Water-based solutions

Plain water can be used, simply functioning mechanically to expand the colon, thus prompting evacuation.

Castile soap is commonly added because its irritation of the colons lining increases the urgency to defecate. However, liquid handsoaps and detergents should not be used.

Glycerol is a specific bowel mucosa irritant serving to induce peristalsis via a hyperosmotic effect. It is used in a dilute solution, e.g., 5%.

Normal saline is least irritating to the colon, at the opposite end of the spectrum. Like plain water, it simply functions mechanically to expand the colon, but having a neutral concentration gradient, it neither draws electrolytes from the body, as happens with plain water, nor draws water into the colon, as occurs with phosphates. Thus, a salt water solution can be used when a longer period of retention is desired, such as to soften an impaction.


1.3. Medical usage Other solutions

Equal parts of milk and molasses heated together to slightly above normal body temperature have been used. Neither the milk sugars and proteins nor the molasses are absorbed in the lower intestine, thus keeping the water from the enema in the intestine. Studies have shown that milk and molasses enemas have a low complication rate when used in the emergency department and are safe and effective with minimal side effects.

Mineral oil functions as a lubricant and stool softener, but may have side effects including rectal skin irritation and leakage of oil which can soil undergarments for up to 24 hours.


1.4. Medical usage Single substance solutions

In alphabetical order

Arachis oil peanut oil enema is useful for softening stools which are impacted higher than the rectum.

Bisacodyl stimulas enteric nerves to cause colonic contractions.

Dantron is a stimulant drug and stool softener used alone or in combinations in enemas. Considered to be a carcinogen its use is limited, e.g., restricted in the UK to patients who already have a diagnosis of terminal cancer and not used at all in the USA.


Glycerol has a hyperosmotic effect and can be used as a small-volume 2–10 ml enema or suppository.

Mineral oil is used as a lubricant because most of the ingested material is excreted in the stool rather than being absorbed by the body.

Sodium phosphate. Also known by the brand name Fleet. Available at drugstores; usually self-administered. Buffered sodium phosphate solution draws additional water from the bloodstream into the colon to increase the effectiveness of the enema. But it can be rather irritating to the colon, causing intense cramping or "griping." Fleet enemas usually causes a bowel movement in 1 to 5 minutes. Known adverse effects.

Sorbitol pulls water into the large intestines causing distention, thereby stimulating the normal forward movement of the bowels. Sorbitol is found in some dried fruits and may contribute to the laxative effects of prunes. and is available for taking orally as a laxative. As an enema for constipation, the recommended adult dose is 120 mL of 25-30% solution, administered once. Note that Sorbitol is an ingredient of the MICROLAX® Enema.


1.5. Medical usage Compounded from multiple ingredients

In alphabetical order of the original brand names

Klyx contains docusate sodium 1 mg/mL and sorbitol solution 70% crystallising 357 mg/mL and is used for faecal impaction or constipation for colon evacuation prior medical procedures, developed by Ferring B.V.

Micralax not to be confused with MICROLAX®

MICROLAX® not to be confused with Micralax combines the action of sodium citrate, a peptidising agent which can displace bound water present in the faeces, with sodium alkyl sulphoacetate, a wetting agent, and with glycerol, an anal mucosa irritant and hyperosmotic. However, also sold under the name "Micralax", is a preparation containing sorbitol rather than glycerol; which was initially tested in preparation for sigmoidoscopy.

Micolette Micro-enema® contains 45 mg sodium lauryl sulphoacetate, 450 mg per 5 ml sodium citrate BP, and 625 mg glycerol BP and is a small volume stimulant enema suitable where large-volume enemas are contra-indicated.


1.6. Medical usage Transanal irrigation

TAI, also termed retrograde irrigation, is designed to assist evacuation using a water enema as a treatment for persons with bowel dysfunction, including fecal incontinence or constipation, especially obstructed defecation. By regularly emptying the bowel using transanal irrigation, controlled bowel function is often re-established to a high degree, thus enabling development of a consistent bowel routine. Its effectiveness varies considerably, some individuals experiencing complete control of incontinence but others reporting little or no benefit.

An international consensus on when and how to use transanal irrigation for people with bowel problems was published in 2013, offering practitioners a clear, comprehensive and simple guide to practice for the emerging therapeutic area of transanal irrigation.

The term retrograde irrigation distinguishes this procedure from the Malone antegrade continence enema, where irrigation fluid is introduced into the colon proximal to the anus via a surgically created irrigation port.


1.7. Medical usage Bowel management

Patients who have a bowel disability, a medical condition which impairs control of defecation, e.g., fecal incontinence or constipation, can use bowel management techniques to choose a predictable time and place to evacuate. Without bowel management, such persons might either suffer from the feeling of not getting relief, or they might soil themselves.

While simple techniques might include a controlled diet and establishing a toilet routine, a daily enema can be taken to empty the colon, thus preventing unwanted and uncontrolled bowel movements that day.


1.8. Medical usage Contrast X-ray

In a lower gastrointestinal series an enema that may contain barium sulfate powder or a water-soluble contrast agent is used in the radiological imaging of the bowel. Called a barium enema, such enemas are sometimes the only practical way to view the colon in a relatively safe manner.

Failure to expel all of the barium may cause constipation or possible impaction and a patient who has no bowel movement for more than two days or is unable to pass gas rectally should promptly inform a physician and may require an enema or laxative.


1.9. Medical usage Medication administration

The administration of substances into the bloodstream. This may be done in situations where it is undesirable or impossible to deliver a medication by mouth, such as antiemetics given to reduce nausea though not many antiemetics are delivered by enema. Additionally, several anti-angiogenic agents, which work better without digestion, can be safely administered via a gentle enema.

The topical administration of medications into the rectum, such as corticosteroids and mesalazine used in the treatment of inflammatory bowel disease. Administration by enema avoids having the medication pass through the entire gastrointestinal tract, therefore simplifying the delivery of the medication to the affected area and limiting the amount that is absorbed into the bloodstream.

Rectal corticosteroid enemas are sometimes used to treat mild or moderate ulcerative colitis. They also may be used along with systemic oral or injection corticosteroids or other medicines to treat severe disease or mild to moderate disease that has spread too far to be treated effectively by medicine inserted into the rectum alone.


1.10. Medical usage Inhibiting pathological defecation

  • Travellers diarrhea’s symptoms treated with an enema of sodium butyrate, organic acids, and A-300 silicon dioxide can be successfully decreased with lack of observed side effects.
  • Shigellosis treatment benefits from adjunct therapy with butyrate enemas, promoting healing of the rectal mucosa and inflammation, but not helping in clinical recovery from shigellosis. Use of an 80 ml of a sodium butyrate isotonic enema administered every 12 hours has been studied and found effective.

1.11. Medical usage Other

  • A patient unable to be fed otherwise can be nourished by an enteral administration of predigested foods, which is known as a nutrient enema. This treatment is ancient, dating back at least to the second century CE when documented by Galen, and commonly used in the Middle Ages, remaining a common technique in 19th century, and as recently as 1941 the U. S. military manual for hospital diets prescribes their use. Nutrient enemas have been superseded in modern medical care by tube feeding and intravenous feeding.
  • There have been a few cases in remote or rural settings, where rectal fluids have been used to rehydrate a person. Benefits include not needing to use sterile fluids.
  • Introducing healthy bacterial flora through infusion of stool, known as a fecal microbiota transplant, was first performed in 1958 employing retention enemas. Enemas remained the most common method until 1989, when alternative means of administration were developed. As of 2013, colonoscope implantation has been preferred over fecal enemas because by using the former method, the entire colon and ileum can be inoculated, but enemas reach only to the splenic flexure.
  • Enemas have been used around the time of childbirth however there is no evidence for this practice and it is now discouraged.


2. Adverse effects

Improper administration of an enema can cause electrolyte imbalance with repeated enemas or ruptures to the bowel or rectal tissues resulting in internal bleeding. However, these occurrences rare in healthy, sober adults. Internal bleeding or rupture may leave the individual exposed to infections from intestinal bacteria. Blood resulting from tears in the colon may not always be visible, but can be distinguished if the feces are unusually dark or have a red hue. If intestinal rupture is suspected, medical assistance should be obtained immediately. Frequent use of enemas can cause laxative dependency.

The enema tube and solution may stimulate the vagus nerve, which may trigger an arrhythmia such as bradycardia.

Enemas should not be used if there is an undiagnosed abdominal pain since the peristalsis of the bowel can cause an inflamed appendix to rupture.

There are arguments both for and against colonic irrigation in people with diverticulitis, ulcerative colitis, Crohns disease, severe or internal hemorrhoids or tumors in the rectum or colon, and its usage is not recommended soon after bowel surgery unless directed by ones health care provider. Regular treatments should be avoided by people with heart disease or kidney failure. Colonics are inappropriate for people with bowel, rectal or anal pathologies where the pathology contributes to the risk of bowel perforation.

Recent research has shown that ozone water, which is sometimes used in enemas, can immediately cause microscopic colitis.

A recent case series of 11 patients with five deaths illustrated the danger of phosphate enemas in high-risk patients.


3. History

Enema entered the English Language c.1675 from Latin in which, in the 15th century, it was first used in the sense of a rectal injection, from Greek ἔνεμα enema," injection”, itself from ἐνίηναι enienai "to send in, inject", from ἐν en, "in" + ἱέναι hienai, "to send, throw".

Clyster entered the English Language in the late 14th century from Old French or Latin, from Greek κλυστήρ klystir, "syringe", itself from κλύζειν klyzein, "to wash out". Also spelled glister in the 17th century, rarely cloiste or clister, it is a generally archaic word for enema, more particularly for enemas administered using a clyster syringe.

The first mention of the enema in medical literature is in the Ancient Egyptian Ebers Papyrus c. 1550 BCE. One of the many types of medical specialists was an Iri, the Shepherd of the Anus. Many medications were administered by enemas. There was a Keeper of the Royal Rectum who may have primarily been the pharaohs enema maker. The god Thoth, according to Egyptian mythology, invented the enema.

The Olmec from their middle preclassic period 10th through 7th centuries BCE through the Spanish Conquest used trance-inducing substances ceremonially, and these were ingested via, among other routes, enemas administered using jars.

As further described below in religious rituals, the Maya in their late classic age 7th through 10th centuries CE used enemas for, at least, ritual purposes, Mayan sculpture and ceramics from that period depicting scenes in which, injected by syringes made of gourd and clay, ritual hallucinogenic enemas were taken. In the Xibalban court of the God D, whose worship included ritual cult paraphernal, the Maya illustrated the use of a characteristic enema bulb syringe by female attendants administering clysters ritually.

For combating illness and discomfort of the digestive tract, the Mayan also employed enemas, as documented during the colonial period, e.g., in the Florentine Codex.

The indigenous peoples of North America employed tobacco smoke enemas to stimulate respiration, injecting the smoke using a rectal tube.

A rubber bag connected with a conical nozzle, at an early period, was in use among the indigenous peoples of South America as an enema syringe, and the rubber enema bag with a connecting tube and ivory tip remained in use by them while in Europe a syringe was still the usual means for conducting an enema.

In Babylonia, by 600 BCE, enemas were in use, although it appears that initially they were in use because of a belief that the demon of disease would, by means of an enema, be driven out of the body.

In China, c. 200 CE, Zhang Zhongjing was the first to employ enemas. "Secure a large pigs bile and mix with a small quantity of vinegar. Insert a bamboo tube three or four inches long into the rectum and inject the mixture" are his directions, according to Wu Lien-teh.

In India, in the fifth century CE, Sushruta enumerates the enema syringe among 121 surgical instruments described. Early Indian physicians enema apparatus consisted of a tube of bamboo, ivory, or horn attached to the scrotum of a deer, goat, or ox.

Hippocrates 460-370 BCE frequently mentions enemas, e.g., "if the previous food which the patient has recently eaten should not have gone down, give an enema if the patient be strong and in the prime of life, but if he be weak, a suppository should be administered, should the bowels be not well moved on their own accord."

In the first century BCE the Greek physician Asclepiades of Bithynia wrote "Treatment consists merely of three elements: drink, food, and the enema". Also, he contended that indigestion is caused by particles of food that are too big and his prescribed treatment was proper amounts of food and wine followed by an enema which would remove the improper food doing the damage.

In the second century CE the Greek physician Soranus prescribed, among other techniques, enemas as a safe abortion method, and the Greek philosopher Celsus recommended an enema of pearl barley in milk or rose oil with butter as a nutrient for those suffering from dysentery and unable to eat, and also Galen mentions enemas in several contexts.

In medieval times appear the first illustrations of enema equipment in the Western world, a clyster syringe consisting of a tube attached to a pump action bulb made of a pig bladder.

A simple piston syringe clyster was in use from the 15th through 19th centuries. This device had its rectal nozzle connected to a syringe with a plunger rather than to a bulb.

Beginning in the 17th century enema apparatus was chiefly designed for self-administration at home and many were French as enemas enjoyed wide usage in France.

When clyster syringes were in use in Europe, the patient was placed in an appropriate position ; a servant or apothecary would then insert the nozzle into the anus and press the plunger, resulting in the liquid remedy being injected into the colon.

Because of the embarrassment a woman might feel when showing her buttocks and possibly her genitals, depending on the position to a male apothecary, some contraptions were invented that blocked all from the apothecarys view except for the anal area. Another invention was syringes equipped with a special bent nozzle, which enabled self-administration, thereby eliminating the embarrassment.

Clysters were administered for symptoms of constipation and, with more questionable effectiveness, stomach aches and other illnesses. In 1694 François Mauriceau in his early-modern treatise, The Diseases of Women with Child, records that both midwives and man-midwives commonly administered clysters to labouring mothers just prior to their delivery.

In the 17th century, satirists made physicians a favorite target, resembling Molieres caricature whose prescription for anything was "clyster, bleed, purge," or "purge, bleed, clyster.", e.g., in his 1673 play The Imaginary Invalid. Sir Thomas Mores eldest daughter had fallen sick of the sweating sickness and could not be awakened by doctors. More prayed for her recovery, and then

where incontinent came into his mind, that a glister should be the only way to help her, which when he had told the physicians, they by-and-by confessed, that if there were any hope of health, that it was the very best help indeed, much marvelling of themselves, that they had not afore remembered it.

In 1753 an enema bag prepared from a pigs or beefs bladder attached to a tube was described by Johann Jacob Woyts as an alternative to a syringe.

In the 18th century Europeans began emulating the indigenous peoples of North Americas use of tobacco smoke enemas to resuscitate drowned people. Tobacco resuscitation kits consisting of a pair of bellows and a tube were provided by the Royal Humane Society of London and placed at various points along the Thames. Furthermore, these enemas came to be employed for headaches, respiratory failure, colds, hernias, abdominal cramps, typhoid fever, and cholera outbreaks.

Clysters were a favourite medical treatment in the bourgeoisie and nobility of the Western world up to the 19th century. As medical knowledge was fairly limited at the time, purgative clysters were used for a wide variety of ailments, the foremost of which were stomach aches and constipation.

Moliere, in several of his plays, introduces characters of incompetent physicians and apothecaries fond of prescribing this remedy, also discussed by Argan, the hypochondriac patient of Le Malade Imaginaire. More generally, clysters were a theme in the burlesque comedies of that time.

According to Claude de Rouvroy, duc de Saint-Simon, clysters were so popular at the court of King Louis XIV of France that the duchess of Burgundy had her servant give her a clyster in front of the King her modesty being preserved by an adequate posture before going to the comedy. However, he also mentions the astonishment of the King and Mme de Maintenon that she should take it before them.

In the 19th century many new types of enema administration equipment were devised, including the bulb enema. Later devices allowing gravity to infuse the solution, like those mentioned above used by South American indigenous people and like the enema bag described by Johann Jacob Woyts, came into common use. These consist of a nozzle at the end of a hose which connects a reservoir of solution, either a bucket or a rubber bag, which is hung above the patient.

In the early 20th century the disposable microenema, a squeeze bottle, was invented by Charles Browne Fleet. Its contents cause the body to draw water into the colon, e.g., sodium biphosphate popular in the United States or glycerin popular in Japan.


4.1. Society and culture Colonic irrigation

The term "colonic irrigation" is commonly used in gastroenterology to refer to the practice of introducing water through a colostomy or a surgically constructed conduit as a treatment for constipation. The Food and Drug Administration has ruled that colonic irrigation equipment is not approved for sale for the purpose of general well-being and has taken action against many distributors of this equipment, including a Warning Letter.


4.2. Society and culture Colon cleansing

The same term is also used in alternative medicine where it may involve the use of substances mixed with water in order to detoxify the body. Practitioners believe the accumulation of fecal matter in the large intestine leads to ill health. This resurrects the old medical concept of autointoxication which was orthodox doctrine up to the end of the 19th century but which has now been discredited.


4.3. Society and culture Kelloggs enemas

In the late 19th century Dr. John Harvey Kellogg made sure that the bowel of each and every patient was plied with water, from above and below. His favorite device was an enema machine "just like one I saw in Germany" that could run fifteen gallons of water through a persons bowel in a matter of seconds. Every water enema was followed by a pint of yogurt - half was eaten, the other half was administered by enema "thus planting the protective germs where they are most needed and may render most effective service." The yogurt served to replace "the intestinal flora" of the bowel, creating what Kellogg claimed was a completely clean intestine.


4.4. Society and culture Coffee enemas

Well documented as having no proven benefits and considered by medical authorities as rash and potentially dangerous is an enema of coffee.

A coffee enema can cause numerous maladies including infections, sepsis including campylobacter sepsis, severe electrolyte imbalance, colitis, polymicrobial enteric sepsis, proctocolitis, salmonella, brain abscess, and heart failure, and deaths related to coffee enemas have been documented.

Gerson therapy includes administering enemas of coffee, as well as of castor oil and sometimes of hydrogen peroxide or of ozone.

Some proponents of alternative medicine have claimed that coffee enemas have an anti-cancer effect by "detoxifying" metabolic products of tumors but there is no medical scientific evidence to support this.


4.5. Society and culture Pleasure

Enjoyment of enemas is known as klismaphilia, which medically is classified as a paraphilia. A person with klismaphilia is a klismaphile.

Klismaphiles can gain satisfaction of enemas through fantasies, by actually receiving or giving one, or through the process of eliminating steps to being administered one e.g., under the pretence of being constipated. An enema can be an auxiliary to, or even a substitute for, genital sexual activity.

That some women use enemas while masturbating was documented by Alfred Kinsey in "Sexual Behavior in the Human Female." He stated, "There still tube we had” wrote an officer, and "violent enemas" is how a detainee described what he received.


4.6. Society and culture Written literature

In the Dionysus satyr play Limos, Silenus attempts to give an enema to Heracles.

In Shakespeares play Othello Act II, Scene I Iago says, "Yet again your fingers to your lips? would they were clyster-pipes for your sake!"

In George Orwells novel Nineteen Eighty-Four, the narrator notes, "Sexual intercourse was to be looked on as a slightly disgusting minor operation, like having an enema."

In Grace Metaliouss novel Peyton Place, the town doctor tells of" a young boy with the worst case of dehydration I ever saw. It came from getting too many enemas that he didn’t need. Sex, with a capital S-E-X.”. As a teenager, the boy enjoys receiving enemas from his mother.

In Flora Rheta Schreibers book Sybil, Sybils psychiatrist asks her" What’s Mama been doing to you, dear?. I know she gave you the enemas."

In Anne Roiphes novel Torch Song, Marjorie, not knowing how to otherwise address her dysphonia, reminisces on unhappy memories, one of which is her German nurse inflicting on her painful enemas.

In Anne Sextons poem "Cripples And Other Stories", is the couplet "Oh the enemas of childhood, reeking of outhouses and shame!"


4.7. Society and culture Film

In The Right Stuff, during flight training astronaut Alan Shepard retains a barium enema, given two floors away from a toilet, embarrassingly riding a public elevator wearing a hospital gown and holding the enema bag with its tip still inserted in him.

In Sybil, Sybils psychiatrist, while having taken her for a picnic in the country, heard her re-experience, among other things, her mother having bound her with a broom handle on the kitchen table and suspended her by her feet from the hanging light, in preparation for forcing her to take an enema.


4.8. Society and culture Song

The lyrics of Frank Zappas song The Illinois Enema Bandit are concerned with Michael H. Kenyons sexual assaults which included administering involuntary enemas


4.9. Society and culture Monument

A 365-kilogram 805-pound brass statue of a syringe enema bulb held aloft by three cherubs stands in front of the "Mashuk" spa in the settlement of Zheleznovodsk in Russia. Inspired by the 15th century Renaissance painter Botticelli, it was created by a local artist who commented that "An enema is an unpleasant procedure as many of us may know. But when cherubs do it, its all right." When unveiled on 19 June 2008, posted on one of the spas wall was a banner declaring "Lets beat constipation and sloppiness with enemas." The spa lying in the Caucasus Mountains region, known for dozens of spas that routinely treat digestive and other complaints with enemas of mineral spring water, the director commented "An enema is almost a symbol of our region." It is the only known monument to the enema.

  • An alcohol enema also known colloquially as butt - chugging or boofing, is the act of introducing alcohol into the rectum and colon via the anus, i.e.
  • Enema of the State is the third studio album by American rock band Blink - 182, released on June 1, 1999, by MCA Records. After a long series of performances
  • A tobacco smoke enema an insufflation of tobacco smoke into the rectum, i.e. as an enema was employed by the indigenous peoples of North America to
  • continence enema is a surgical procedure used to create a continent pathway proximal to the anus that facilitates fecal evacuation using enemas The operation
  • A nutrient enema also known as feeding per rectum, rectal alimentation, or rectal feeding, is an enema administered with the intent of providing nutrition
  • A double - contrast barium enema is a form of contrast radiography in which x - rays of the colon and rectum are taken using two forms of contrast to make
  • The Mark, Tom, and Travis Show The Enema Strikes Back is a live album by American rock band Blink - 182, released on November 7, 2000, by MCA Records
  • A coffee enema is the injection of coffee into the rectum and colon via the anus, i.e., as an enema Medical authorities consider this procedure to be
  • born c. 1944 in Elgin, Illinois is an American criminal nicknamed the Enema Bandit. He pleaded guilty to a decade - long series of armed robberies of
  • Public Enema 1 is the first of four yearly CDs of calls, bits and sketches released by KLBJ s Dudley and Bob with Debra. The cover features Dale Dudley
  • sulfate, a radiocontrast agent, fills the colon via an enema through the rectum. The term barium enema usually refers to a lower gastrointestinal series
  • A dry enema is an alternative technique for cleansing the human rectum either for reasons of health, or for sexual hygiene. It is accomplished by squirting