Red, swollen and painful finger joints may be suffering from rheumatoid arthritis, gouty arthritis, tenosynovitis and other diseases. 1. Rheumatoid arthritis: Rheumatoid arthritis is generally characterized by persistent swelling and pain in the small joints of the fingers, which is often accompanied by morning stiffness, and joint deformity in the later stage. Some patients also have fever, weight loss, fatigue, weakness and other systemic symptoms. 2. Gouty arthritis: gouty arthritis is generally divided into acute, intermittent and chronic, acute attack patients affected joints will appear red, swollen, pain, burning and other symptoms, intermittent period is generally asymptomatic, chronic patients in addition to the above symptoms, but also joint deformity, stiffness, impaired function and other symptoms. 3. Tenosynovitis: patients may complain of pain on the radial side of the wrist and pain at the base of the thumb, which will be more obvious when the thumb and wrist are moving. Tenosynovitis is a painful but non-progressive disease that is usually self-limiting. Therefore, the goal of treatment is to relieve symptoms and reduce functional limitations. There are limited data on the natural course of tenosynovitis, but it seems to generally resolve in about 1 year and rarely recurs. There may be other causes of redness, swelling and pain in the finger joints. It is recommended to visit the hospital promptly to improve the examination and identify the cause of the disease, and then give targeted treatment or therapy.