Oct 4, 2024 · A pilonidal (pie-low-NIE-dul) cyst is an unusual pocket in the skin that usually contains hair and skin debris. The cyst is almost always near the tailbone at the top of the buttocks.

A pilonidal cyst is a round sac of tissue that's filled with air or fluid. This common type of cyst is located in the crease of the buttocks and is usually caused by a skin infection.

Pilonidal disease is a type of skin infection that typically occurs as a cyst between the cheeks of the buttocks and often at the upper end. [1][3] Symptoms may include pain, swelling, and redness. [1]

Pilonidal disease is a chronic skin problem found most often in the sacrococcygeal region. This is the cleft between the buttocks just below the base of the spine. It is characterised by one or more sinus …

Pilonidal disease is a chronic skin infection in the crease of the buttocks near the coccyx (tailbone). It affects about 70,000 people in the US annually and is more common in men than women.

Mar 14, 2026 · Researchers think that ingrown hairs cause pilonidal cysts. Pilonidal means "nest of hair," and doctors sometimes find hair follicles inside the cyst.

May 7, 2025 · Pilonidal disease is a suppurative condition of the skin and soft tissue involving the sacrococcygeal cleft (sometimes referred to as the natal or gluteal cleft).

Trusted resource for Pilonidal Disease and Pilonidal Cysts. Learn symptoms, treatments, recovery tips, and find support for patients, parents, and medical professionals.

May 31, 2023 · This narrative review discusses the current data on pilonidal disease along with current treatment modalities and contemporary management strategies.

A pilonidal sinus is a small hole or tunnel at the top of your bottom, between your buttocks. Treatment is usually only needed if it becomes infected. Most people with a pilonidal sinus do not notice it unless it …