“…Hairdressers and barbers have high rates of occupational skin diseases; in the United Kingdom, approximately 70% develop contact dermatitis [ 1 ]. Because of its prevalence, dermatologists diagnose contact dermatitis in hairdressers frequently; conversely, trichogranuloma (also known as barber’s hand, interdigital pilonidal sinus, or barber’s sinus [ 2 ]), is rarely reported, mostly seen by surgical specialties, and many clinicians are not aware of it [ 2 - 3 ]. Like a pilonidal sinus of the sacro-coccyx, it develops when cut or broken hairs penetrate the skin, causing a pyogranuloma.…”