[Pilonidal sinus in a hairdresser]

The patient is a 28-year-old hairdresser who began his apprenticeship after school and has worked in this profession since then. Within the last two years fistulas formed on both hands between the second and third fingers in which hairs accumulated during his daily work of cutting hair. So an infection with lymphadenitis occurred. The excision lead to the histological result of an interdigital pilonidal-sinus.