What causes a pilonidal cyst or sinus?
Hairs puncture the skin to initiate formation of a cyst. This occurs from the natural rolling movement of the buttocks and is worsened by the pressure of sitting, friction of walking, and the accumulation of sweat. Initially, the cyst or sinus may be painless. It can become inflamed, swollen, painful, and discharge pus or blood (an abscess). The individual may generally feel unwell or, less commonly, develop a fever. How is a pilonidal abscess treated? Treatment depends on the severity of the symptoms. Antibiotics have not been shown to be effective in treating this condition. An incision and drainage may be necessary or a clinician may suggest surgery to completely remove the infected cyst. After the cyst is drained or removed, it may be necessary to have regular dressing changes to allow the wound to heal properly and prevent infection. Regular follow-up visits will be necessary to assess the healing progress of the wound. To promote healing the following is advised: • Shower or use
