An anal fistula is a small channel that can develop between the end of the bowel and the skin near the anus. It is common among those who had the earlier anal abscess. An anal abscess is an infected cavity which is filled with pus. It is formed when anal abscess drained and not healed properly. It may cause bleeding or discharge while passing stools which may be more painful. If the anal fistula becomes severe, drainage may persist for a long time
Doctors usually diagnose an anal fistula by examining the area around the anus. To determine the depth and direction of the fistula tract doctor can produce drainage from the external opening. If Fistula is not visible on skin surface, additional test like Anoscopy, in this test to see inside your rectum and anus a special instrument is used. To better define the Fistula Doctor may order an MRI or Ultrasound as well.
As per the medical invention, Fistula treatments techniques are divided into two categories like:-