The medial cutaneous nerve of forearm is a sensory nerve that provides sensation to the skin on the inner aspect of the forearm and wrist. There are a few synonyms that are commonly used to refer to this nerve. One of them is the anterior branch of the medial cutaneous nerve, which describes its location in relation to the other branches of the nerve. Another synonym is the ulnar forearm nerve, which reflects its connection to the ulnar nerve, one of the major nerves in the forearm. Finally, some sources refer to this nerve simply as the medial forearm nerve or the cutaneous nerve of the forearm. Regardless of the terminology used, this nerve plays an important role in sensory function of the forearm and wrist.