Palm pain, the most common location is in the five metacarpophalangeal joints on the palm side of the place, usually is the five fingers and the palm of the hand where the joint is called the metacarpophalangeal joints, generally appear in this place of pain, there are commonly the following two aspects of the cause: First, there may be inflammation of the joints, the most common is rheumatoid arthritis, rheumatoid arthritis and gouty arthritis, in addition to the pain, it will also be accompanied by localized In addition to pain, it will be accompanied by localized redness, swelling, heat and pain, such as skin flushing and swelling. Second, the tendon sheath of flexor tendon or tendon inflammation, usually also called ringing finger, can be touched to the metacarpophalangeal joint palm side of the place there is a round protrusion, pressure will be painful, if serious in the finger activities will appear ringing sound.