Pilonidal sinus, often referred to as pilonidal disease or pilonidal cyst, is a condition that affects the skin at the top of the buttocks crease. While it may sound complex, pilonidal sinus can be understood as an abscess or small tunnel that forms under the skin, usually filled with pus, hair, and debris. Although the exact cause of pilonidal sinus isn’t fully understood, it’s believed to be related to hair growth and friction in the affected area.
Pilonidal sinuses typically develop in areas with hair, such as the buttocks crease, because of the following factors:
The symptoms of pilonidal sinus can vary from mild discomfort to severe pain and include:
Diagnosing pilonidal sinus usually involves a physical examination of the affected area. Your doctor may also inquire about your symptoms and medical history. In some cases, imaging tests such as ultrasound or MRI may be recommended to assess the extent of the sinus tract.
The treatment of pilonidal sinus depends on the severity of the condition and may include:
While pilonidal sinus may not always be preventable, certain measures can help reduce the risk of developing the condition: