Overview

An anal fistula is an abnormal passageway that develops from inside your anus to the skin outside. It usually develops in the upper part of your anus (butthole), where your anal glands are. When these glands become infected, drainage from the infection can create a fistula. This infection is called a perianal abscess. (Sometimes an anal fistula is also called a perianal fistula. “Perianal” means in the region of your anus.)

How common is this condition?

A fistula is a relatively common anorectal condition. It’s twice as common in men and people assigned male at birth (AMAB). About half of people who get an infected anal gland will develop a fistula. An infected gland that forms an abscess, a pocket of pus that needs to drain, causes 75% of anal fistulas.

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Symptoms

When to see a doctor

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Complications

Blood clots are a dangerous complication of atrial fibrillation (AFib). Blood clots can lead to stroke.
The risk of stroke from AFib increases as you grow older. Other health conditions also may increase the risk of a stroke due to AFib. These conditions include:
  • High blood pressure.
  • Diabetes.
  • Heart failure.
  • Some types of heart valve disease.
Blood thinners are commonly prescribed to prevent blood clots and strokes in people with atrial fibrillation.

Prevention

Healthy lifestyle choices can reduce the risk of heart disease and may prevent atrial fibrillation (AFib). Here are some basic heart-healthy tips:
  • Control high blood pressure, high cholesterol and diabetes.
  • Don't smoke or use tobacco.
  • Eat a diet that's low in salt and saturated fat.
  • Exercise at least 30 minutes a day on most days of the week unless your health care team says not to.
  • Get good sleep. Adults should aim for 7 to 9 hours daily.
  • Maintain a healthy weight.
  • Reduce and manage stress.


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