Pilonidal sinus, commonly known as ingrown hair disease, is observed 3-4 times more frequently in men compared to women. This condition typically concentrates in individuals aged 15-35, with its incidence significantly decreasing after the age of 45. An increased risk of pilonidal sinus is observed in professional groups requiring prolonged sitting, such as drivers, barbers, dog groomers, and sheep shearers, as well as in individuals adopting a sedentary lifestyle.