What Causes a Fistula?

Fistulas are often caused by injury, surgery, infection, or inflammation.

Understanding Fistulas

A fistula is an abnormal connection between two body parts, such as an organ and another organ, or an organ and the skin. This connection is not supposed to exist, and its presence can lead to various complications.

Common Causes of Fistulas

Here's a breakdown of the common causes:

• Injury or Surgery: These are frequent culprits. Trauma to the body or surgical procedures can sometimes inadvertently create a pathway that develops into a fistula.

• Infection: Infections can erode tissues and create abnormal connections.

• Inflammation: Chronic inflammation, like that seen in certain diseases, can also lead to fistula formation. A prime example of this is:

  • Crohn's Disease: As stated in the provided reference, Crohn's disease, a chronic inflammatory bowel disease, is a significant cause of fistulas. The inflammation associated with Crohn's can cause ulcers in the intestinal lining. These ulcers can then burrow through the intestinal wall and create channels of infection, which we know as fistulas. This immune response within the intestines can lead to ulceration and subsequent fistula development.

Types of Fistulas

Fistulas can occur in various parts of the body. Some common types include:

• Anal Fistulas: These occur between the anal canal and the skin around the anus.
• Vesicovaginal Fistulas: These occur between the bladder and the vagina.
• Enterocutaneous Fistulas: These occur between the intestine and the skin.

Summary Table of Fistula Causes