Causes of Anal Leakage

If you are dealing with the problem of leaking anus, then you need to ask this question. What type of fluid is leaking from there? This is biggest hint about the cause of leakage.

Types of Leaking Fluids

Mucoid/ Clear Fluid

It could be a transparent looking, slimy, mucoid discharge, coming out of the bowel. This usually indicates that there is some inflammatory condition affecting the lower bowels.


That is, pus containing discharge. This is likely to be due to infection down there in your lower bowels. Common among them are tuberculosis or some STDs.


There may be a tear or a fistula around the anal opening, that is oozing out the clear liquid. Or, there may be an abscess that’s leaking. You need to get examined.


The fluid may be blood stained or you may get frank blood coming out of the anus. The commonest cause for such a situation is Piles. However, proper evaluation is needed to investigate the precise cause.


A fecal discharge coming out of the anal opening may suggest incontinence of the anal sphincter. This means that the muscular orifice controlling the anal opening is not tight enough due to some reason.

Fatty discharge

Some may get a greasy or fatty discharge from there. This happens when your stools contain excess of fats in them.

Symptoms of Rectal Discharge

  • Staining of undergarments
  • Pain or ache while defecation
  • Feeling of wetness down there
  • Anal itching
  • Frequent urge to go to washroom
  • Foul smell from groin area
  • Redness or swelling around the anus

On the basis of your symptoms and the type of fluid leaking out, your doctor may proceed with investigating you. Some conditions where leaking anus is commonly seen are discussed below.

Common Causes

Inflammatory Bowel Syndrome

IBS is characterized by inflammation and irritation of the distal bowels. A clear or yellowish white discharge may come out. This is usually mucoid in consistency.

It feels slimy to touch. The patient may often perceive as some wetness down there. The  yellow color may be due to the bile pigments from the gut above or due to fecal contamination.

The pH of the fluid may be acidic sometimes, leading to itchiness and redness around the anal opening.


Certain infections affecting the distal anal canal may lead to leaking of inflammatory fluid from the anal opening. The fluid may be pus like, as in tubercular infection, or clear mucoid.

STDs may also affect this area. This is specifically common in people who practice anal sex. Lesions may be seen in or around the anus on examination.

There may be ulcers, rashes or overt growths. Itchiness may be there. A feeling or dampness stays in the groin area. There is a discomfort in movements.

The underwear may be blood stained or sometimes pus may be seen. Bodily symptoms like pain in lower abdomen or fever may be present.

Anal Warts

Warts are open growths in the region caused by certain viruses. They are usually sexually transmitted.


A serous discharge may be seen in malignant growths. If infected the exudate may be pus like.

Such growths are usually painless, irregular and attached to the underlying skin.

Piles or Hemorrhoids

Blood coming out of the opening is, by far, mostly due to piles. However, since malignancy is another cause of getting blood there, it’s essential to evaluate.


This is a condition where orange to transparent colored greasy stuff leaks out from your bottom. The discharge may be as little as a tea spoon full, to larger than a cup, that needs to be evacuated in the commode.

This happens when you consume certain fish oils that are indigestible. The oils pass out from your anus as is it without being used by the body.

Fecal Incontinence

Leakage or involuntary passing out of the stools  from the anus is called bowel incontinence or fecal leakage.

This ranges from slight fecal leakage to passing out of the whole stools. There is a foul smell from the discharge. The skin around the opening in constantly wet, and may itch or rot.

Causes of Incontinence

  • Chronic diarrhea/ constipation, which leads to irritation of the anal orifice
  • Denervation, that is, injury to the nerve controlling the anal orifice. This may happen after some surgical procedure for hemorrhoids or childbirth.
  • Medical conditions involving the nerves, as diabetes or multiple sclerosis
  • Muscle problem, sphincter loosing
  • After parturition, especially when forceps have been used or episiotomy done.


For all cases of fluid leaking from your bottoms, it is suggested that you see a doctor for proper evaluation about the cause behind it.

Meanwhile, keeping the area dry down there is essential. This is to prevent maceration of the skin there, and subsequent chances of any infections. Butterfly body pads or liners are available in the market. They may be used to keep the region clean.

Medical Advice (Q&As) on “If Your Anus Is Leaking, Look for These Causes

  1. Bob Loblaw

    I have pimple like bumps around the rim of my anus that appear sometimes. That is to say that sometimes they are there and sometimes they are not. When they do appear I have only felt them and not actually had a visual because of awkwardness of viewing that area. I have squeezed them and what comes out is similar to a regular pimple of the face. When squeezing it I use two fingers from one hand and it is necessary to kind of get under it in order for it to discharge. Of course it has a foul smell but not unexpected for that area, has a black/brown smaller head to it and the remainder is a white discharge, however it’s unlike what one would get from the face/nose, the long skinny snake/worm like that continues to grow as long as pressure applied. I have had these off and on for years. They have never caused any pain or discomfort. Any ideas?

    1. Buddy M.D. Post author

      We have lubricating glands over that area. Appear a few of your glands are getting infected repeatedly.

      Keep good hygiene down there. Try washing the area with plain water liberally after defecation, instead of just wiping it with tissue .This should make a difference.