A pilonidal sinus is a small tunnel that develops at the top of the crease in the buttocks. Trapped hair around the buttocks crease can lead to an abscess, and a pilonidal sinus may develop as a ...

Q: I have a cyst on the end of my tailbone that's been there for years without any problems. My friend says that she has a similar problem, but under her arm. Her doctor told her that she has ...

According to the American Society of Colon and Rectal Surgeons, Pilonidal disease is a chronic skin infection that affects about 70,000 people in the United States annually. While the cause is not ...

Medically reviewed by Casey Gallagher, MD Key Takeaways Do not try to pop or drain a cyst on your own.Cysts aren't ...

ALTHOUGH dermoid cysts are not common and are seldom malignant, they are of interest from several points of view. When they occur near the body surface they are of concern to the patient because of ...