An anal fistula is a small, abnormal tunnel connecting the interior of the anus to the skin surrounding it. This condition often arises due to an infection in an anal gland that forms an abscess, which then drains and forms a passageway. Anal fistulas can be uncomfortable and may interfere with daily activities.
Symptoms of an anal fistula include persistent pain and swelling in the anal area, skin irritation around the anus, and discharge of pus or blood. It can sometimes be accompanied by fever and a general feeling of being unwell. The affected area may also emit a foul odor, and the pain may worsen when sitting or engaging in physical activities.
Treating an anal fistula usually requires medical intervention. The primary method is surgery, which aims to remove the fistula tract and promote healing. The most common surgical procedures are fistulotomy, where the fistula is cut open to heal from the inside out, and seton placement, where a surgical thread is used to help gradually close the fistula. In some cases, medications may be prescribed to manage infection and reduce symptoms. Early diagnosis and treatment are crucial to prevent complications and ensure effective healing.