Large finger joint pain consider gout, osteoarthritis, rheumatoid arthritis, purulent dactylitis and other causes. 1. Gout: acute sudden pain, localized redness and swelling, laboratory tests of uric acid can be a clear diagnosis. 2. Osteoarthritis: joint pain is usually chronic pain, joint activity is limited, through the X-ray film can be clearly diagnosed. 3. Rheumatoid arthritis: joint pain is wandering, joints have obvious morning stiffness phenomenon, joint deformation, test rheumatism three can be clearly diagnosed. 4. Purulent dactylitis: finger local soft tissue infection caused by big finger joint pain, redness and swelling, need to incise and drain surgery. Big finger joint pain need to go to the hospital for further examination to clarify the cause of the disease, for the cause of the treatment.