have a condition such as hyperthyroidism (overactive thyroid).Sometimes a person may have a positive Hoffman’s sign if they: This damage may result in a person having a more exaggerated response to stimulation, such as during the Hoffman’s sign test.ĭoctors may use the Hoffman’s sign test along with other tests to determine whether a person has a medical condition that affects the spine. When the nerves become damaged, however, these protective capabilities are less effective. Typically, the nervous system works to temper the spinal reflexes, so a person does not overreact to stimuli. In the case of the Hoffman’s sign, this occurs when the nervous system overreacts to the flick on the fingernail. A positive response is known as hyperreflexia. If the index finger and thumb move, the person has a positive Hoffman’s sign.Ī doctor may notice the movement more profoundly if the person is extending or flexing their neck. If there is no movement in the index finger or thumb after this motion, the person has a negative Hoffman’s sign. “flicking” the nail of the person’s middle finger, using their other hand.holding the middle finger at the joint closest to the fingernail.The doctor carries out the test procedure by: The Hoffman’s test examines a person’s reflexes, or how their body reacts to stimulation of the nervous system.ĭoctors will often evaluate reflexes in people with nerve damage to assess the potential severity of their injuries.Ī doctor can perform the Hoffman’s sign test without equipment. Share on Pinterest The Hoffman’s test will help diagnose nerve damage.

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