Pilonidal Disease: Causes, Symptoms & Treatment Guide

This content defines Pilonidal Disease (known during WWII as "Jeep disease") as an acquired condition, not congenital. It occurs when loose hair gets trapped under the skin in the natal cleft (crease at the top of the buttocks), which the body walls off, leading to inflammation, cysts, and potential abscesses. Risk factors include a deep natal cleft, coarse hair, sitting for long periods, obesity, and family history. Diagnosis is typically made via a simple physical exam. Treatment is individualized and patient-focused. Options range from conservative management (keeping the area clean/dry, hair removal, avoiding prolonged sitting) to surgical interventions. Surgical trade-offs exist between the lay open procedure (low recurrence, slow healing) and excision and closure (faster healing, higher recurrence). Advanced techniques, such as flap procedures (e.g., Cleft Lift), are used for recurrent cases to flatten the cleft's anatomy. Recurrence rates can be up to 34% after one year, making long-term hair removal and lifestyle changes vital.