Pilonidal sinus disease is a sinus or epithelial tract which is found in the skin of the natal cleft close to the anus and often contains hair. The cause of pilonidal disease is not clearly understood but the present consensus is that cysts form by overstretching and enlargement of the hair follicles in the natal cleft which then becomes blocked with keratin and can lead to rupture of the follicle and infection with the formation of an abcess. Hair within the follicle can become trapped in the skin and cause further irritation and infection (Bascom, 2008). Sondenaa et al (1995) report evidence of certain risk factors associated with the disease, including obesity, sedentary occupation, hirsuteness and local irritation or trauma.