Ulnar neuropathy is a condition caused by compression of the ulnar nerve at the inner side of the elbow, where the nerve passes through a narrow passage. This passage is formed between the elbow and a ligament that creates a tunnel (ulnar tunnel) through which the nerve passes. In individuals who use their hands frequently or perform manual tasks, it is possible for the nerve to be compressed within the ulnar tunnel.
Ulnar neuropathy manifests as pain or numbness in the hand, with symptoms primarily affecting the little finger and ring finger (areas of sensory distribution of the ulnar nerve). The symptoms are more pronounced with the elbow in flexion and may worsen at night. In advanced stages, there may be a loss of hand strength, resulting in objects falling from the patient’s hands. In chronic neglected cases, permanent nerve damage may occur.