title: Etiology of post-anal pilonidal disease.
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006197:Hair / Q000473:pathology; D006801:Humans; D008297:Male; D010864:Pilonidal Sinus / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D012627:Sebaceous Glands / Q000473:pathology; D012737:Sex Factors