Pain in the area of the tiger’s mouth may be caused by the following aspects: First, it may be the first metacarpophalangeal arthritis, usually this area will suddenly appear local redness, swelling, heat, pain and other symptoms, commonly gouty arthritis, rheumatoid arthritis or rheumatoid arthritis and so on. If you want to clarify which kind of arthritis you can go to the hospital to check the rheumatism three and blood uric acid, basically you can identify it. Second, it may be the first metacarpophalangeal joint or the large interphalangeal muscle often have to work hard people, but also appear local muscle strain and pain, such as people who often do massage massage, or hand holding things more common. Third, there may be localized neuropathic pain, such as radial neuritis or cervical spondylosis compressing the nerve roots of the upper limbs, and the nerve pulling pain of the upper limbs may also cause nerve pulling pain in the tiger’s mouth.