©2018 WebMD, Inc. All rights reserved. eMedicineHealth does not provide medical advice, diagnosis or treatment. See Additional Information.

Pilonidal Cyst Topic Guide

Pilonidal Cyst Pilonidal Cyst: A pilonidal cyst is a cyst that forms near the top of the buttocks. Symptoms and signs include pain, redness, warmth, swelling, fever, and drainage of pus. Treatment of the pilonidal cyst requires incision and drainage under local anesthesia.