Fistula

A fistula is an abnormal passage that connects two organs or cavities in the body. It may occur anywhere in the body but they're most common in the anus and rectum because these areas are prone to infection. General symptoms include pain, diarrhea, constipation, fever, weight loss, nausea, vomiting, and fatigue.

A fistula forms when bacteria get into the tissues around the area where two organs join together. It is commonly caused by injury, infection, cancer, or congenital defects. A fistula may be congenital (present at birth) or acquired (develop later in life).  

Fistula can be categorized depending on the type, nature and location. Fistulae are usually hard to deal with but can be prevented and treated. Treatment for fistulas depends on how severe the problem is. If the fistula fails to respond to the medications and antibiotics, surgical treatment might be needed to remove the fistula.