The halen sign refers to a test result that is demonstrated by a physical examination, and the test that is capable of showing the phalen sign refers to the carpal dorsiflexion test. The test is a common method of examining patients for the presence of carpal tunnel syndrome. If the patient, or the person being examined, does a wrist dorsiflexion, or wrist drop, and squeezes the backs of both hands against each other, and if there is numbness in the fingers within one minute, the test is positive for phalen’s syndrome, which may indicate that the patient has carpal tunnel syndrome. Carpal tunnel syndrome refers to the compression of the neurovascular pathways in the wrist by the surrounding soft tissues, resulting in numbness in the arm, palm, or pain in the surrounding limbs such as the forearm. Carpal tunnel syndrome can be aggravated by exertion and can be relieved by local massage.