There are three different neuropathies defined by where the ulnar nerve is compressed that are much less common than cubital tunnel. Nerve conduction is used to confirm diagnosis of cubital tunnel, defined as symptomatic ulnar nerve dysfunction at the level of the elbow; this is treated either nonoperatively or operatively depending on severity. Guyon’s canal syndrome, another nerve compression syndrome, occurs when the ulnar nerve is compressed in the space at the base of the hypothenar eminence where it bifurcates. It can be caused by lesion, and Phalen’s sign is a positive presentative symptom.