What is cubital tunnel syndrome?

What is cubital tunnel syndrome?

Cubital tunnel syndrome, also called ulnar nerve entrapment, happens when your ulnar nerve gets irritated or compressed (squeezed) at the inside of your elbow.

Nerves are bundles of string-like fibers that send and receive messages between your brain and your body via electrical and chemical changes in the cells. There are three main nerves in your arm: the median, the ulnar and the radial. The ulnar goes from your neck down your arm and to your hand.

You may have cubital tunnel syndrome if your ulnar nerve is compressed or irritated at the elbow. The nerve may also be affected higher on the arm or at the wrist.