Venipuncture-related traumatic neuroma of the ulnar nerve on the dorsal of a hand: A case report.

A large number of venipunctures are placed on the dorsal of the hand, and it is suitable for the majority of patients with the advantage of few complications. Here, the ulnar nerve on the dorsal was injured during peripheral intravenous catheter insertion, and a painful traumatic neuroma was discovered a week later. Through oral medication and topical lidocaine medicated plaster, the patient's pain is greatly reduced, and allowed to engage in nearly all activities. Knowledge of this complication may help with its recognition and early treatment.