Hooking the weight bar with thumb during weight lifting can result in the hooking thumb.
Athlete selection: weightlifter
Location: distal phalanx
Precipitating event: hooking the thumb
The lesion may be a combination of:
(1) abrasion with or without blister and loss of the epidermis
(2) hematoma or bruise, including subungual
The diagnosis requires exclusion of other diagnoses.