Carpal tunnel syndrome is a disease caused by the compression of the median nerve in the wrist and is most common in middle-aged and elderly women. Its cause is related to the repeated activities of the wrist joints over a long period of time and the changes in hormone levels in the body after menopause. Generally speaking, patients with carpal tunnel syndrome have more numbness in one or more of the thumb, index and middle fingers, less numbness in the ring finger, and the least numbness in the little finger, or even no numbness at all. People with more sensitive senses can even find that the numbness on both sides of the ring finger is different, with the side against the middle finger being more numb and the side against the little finger being lighter or even not numb. In addition to the site, the time of numbness can also sometimes help us to determine the night numbness or even wake up because of numbness discomfort often suggests the presence of carpal tunnel syndrome. For more serious patients, in addition to numbness, will also be found in the interosseous muscle atrophy (palm surface of the hand by the thumb side of the muscle), accompanied by the thumb and little finger to pinch weakness. Doctor’s note: One of the most typical symptoms of carpal tunnel syndrome is that the numbness is confined to the radial side of the thumb, index, middle and ring fingers (the side near the middle finger), so the sensation is inconsistent on both sides of the ring finger. The above symptoms of hand numbness may be carpal tunnel syndrome.