In tunnel syndrome, for some reason, a narrowing develops next to the descending nerve, which puts pressure on it. Elbow (cubital) tunnel syndrome is when the ulnar nerve that travels through narrow, bony ducts in the elbow is under pressure. The nerve can be affected more than the elbow, where it turns from the upper arm to the forearm, and when the elbow is bent and stretched, it is also more exposed to elongation.
Swelling of the soft areas around the nerve can be caused by several reasons. Most often, injury to the elbow, or bone growth is responsible for the development of the syndrome, but frequent elbowing, prolonged bending of the elbow, writing, or excessive mobile phone use can suppress peripheral nerves.
Systemic diseases such as thyroid dysfunction, rheumatoid arthritis, or diabetes may also be associated with cubital tunnel syndrome.
It most commonly develops in young adults as well as middle-aged people, in equal proportions in men and women. Its occurrence is more common in strenuous physical workers and athletes.