Why am I having watery discharge from anus?

Your body normally makes mucus to protect your gut lining, but sometimes this mucus can be more watery. When you have viral gastroenteritis, which is an infection caused by a virus, the lining of your stomach and intestines gets irritated.

This irritation can lead your body to produce extra watery discharge that may come out near your anus. Changes in the tiny microbes (bacteria) in your gut, which help digest your food, can also cause an imbalance leading to watery discharge.

In some cases, conditions like an anal fistula—a small tunnel near the anus—might remove fluid, though it is usually accompanied by other symptoms. A high-fiber diet and prebiotics help keep the microbes balanced, but any disruption might change the amount or quality of the discharge.

If the watery discharge continues for a while, or you feel pain or notice other changes in your bowel habits, it's important to talk with a doctor. You can start by using a free symptom checker to better understand what might be causing your symptoms before seeking professional medical care.