STANHOPE, N.J., June 23, 2025 /PRNewswire/ -- Pilonidal disease—a chronic infectious and inflammatory condition affecting the skin and underlying tissue near the tailbone—is a common disorder ...

A pilonidal cyst, sometimes called pilonidal disease, is a fluid-filled sac that usually occurs on the tailbone at the top of the buttocks. It usually starts as an infection of a hair follicle in the ...