The ulnar nerve is a major nerve that runs down through your arm and into your hand. It affects functions like squeezing and grasping things. Injuries to the ulnar nerve can be painful and limiting.

Medically reviewed by Theresa Marko, PT, DPT, MS Key Takeaways Ulnar nerve entrapment causes numbness or tingling in the hand ...

Thrombosis of the ulnar artery can be a cause of significant morbidity. Most often a consequence of blunt trauma to the hypothenar eminence of the hand, it may be attributable to one traumatic event ...