Pilonidal sinus—also called a pilonidal cyst—is a skin infection that occurs in or around the crease of your buttocks. This condition happens when hair, skin cells, and dirt clog a hair follicle, ...

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 ...

It often starts as a sore spot you assume is a zit, ingrown hair, or minor irritation. Then it gets worse. Sitting becomes uncomfortable. Pressure builds. Sometimes there’s swelling, drainage, or even ...

Also known as a pilonidal cyst, the condition forms when a sac of tissue fills with air or fluid in the crease of your buttocks. Pilonidal cyst, doctors say, is mostly caused by a skin infection.

THE ideal of all surgical treatment is to effect a cure, and in pilonidal cyst and sinus the basic aim is to prevent recurrence, lessen the period of disability and obtain a good mechanical result.

DEAR DR. ROACH: I am writing because my son had a pilonidal cyst removed in March of 2010, almost three years ago. For the first six months, I kept the area clean and free of hair. After six months ...

Dear Dr. Roach • The article about the boy suffering after surgery for three years from a pilonidal cyst really hit home. My son developed a pilonidal cyst in June 2012 and also had a very bad ...

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 ...

Laser epilation, commonly known as laser hair removal, reduced the risk of recurrence in patients with pilonidal disease, an inflammatory, painful, and sometimes chronic or recurring condition, ...