barber's pilonidal sinus

bar·ber's pi·lo·ni·dal si·nus

pilonidal sinus occurring in barbers, usually in the web between the fingers, due to the burying of exogenous hairs by the alternate loosening and tightening of tissues of the hand by the manipulation of scissors.

bar·ber's pi·lo·ni·dal si·nus

(bahr'bĕrz pī'lō-nī'dăl sī'nŭs)
Pilonidal sinus occurring in barbers, usually in the web between the fingers, due to the burying of exogenous hairs by the alternate loosening and tightening of tissues of the hand by the manipulation of scissors.