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Postauricular fistula Save

ICD-10 code: H70.81

Chapter: Diseases of the ear and mastoid process

What is Postauricular Fistula and How to Treat It?

Postauricular fistula is a small abnormal opening that appears behind the ear due to the accumulation of pus or other fluids. The condition can be painful and may cause infection if not treated properly. It can occur in people of all ages, but it is most common in infants and young children.

The causes of postauricular fistula can vary and may include bacterial infections, skin irritations, or congenital abnormalities. The symptoms of this condition can include redness, swelling, discharge, and pain behind the ear.

Treatment Options

If you suspect that you have a postauricular fistula, it is important to seek medical attention right away. Your doctor will examine your ear and may recommend one or more of the following treatments:

  1. Antibiotics: Antibiotics are often prescribed to treat bacterial infections that may be causing the postauricular fistula.
  2. Drainage: If the fistula is filled with pus or other fluids, your doctor may drain it to alleviate pain and prevent infection.
  3. Surgery: In severe cases, surgery may be required to remove the fistula and prevent future complications.

It is important to keep the affected area clean and dry to prevent further infection. Your doctor may also recommend warm compresses or topical treatments to help alleviate pain and swelling.


While postauricular fistula can occur for a variety of reasons, there are steps you can take to reduce your risk of developing this condition. These include:

  • Keeping the area behind your ears clean and dry
  • Avoiding irritants, such as chemicals or rough fabrics, that can cause skin irritation
  • Seeking medical attention right away if you notice any unusual symptoms, such as redness or swelling behind your ear

If you have any concerns about postauricular fistula or other ear-related conditions, be sure to speak with your doctor. With proper treatment and care, most cases of postauricular fistula can be resolved quickly and effectively.