Swelling and fever in finger joints may be caused by gout, osteoarthritis, trauma and other factors. 1. Gout: when the concentration of uric acid in the body is too high, it will lead to a large number of uric acid crystals being deposited in the finger joints where the skin is weak, which will damage the bone quality of the finger joints, thus causing swelling and fever in the finger joints. 2. Osteoarthritis: long-term use of the finger joints to engage in labor activities will lead to degenerative changes in the cartilage of the finger joints, and cause a series of aseptic inflammation, resulting in finger joints swollen and feverish symptoms. 3. Trauma: in daily life or sports, accidentally sprained or smashed finger joints, will lead to finger joints around the ligaments, muscles and other soft tissue damage, resulting in congestion, edema and other inflammatory reactions, which in turn cause finger joints swollen and feverish. As there are many reasons for the swelling and fever of the finger joints, it is recommended to go to the rheumatology and immunology department of the regular hospital for consultation and treatment as prescribed by the doctor when the finger joints are swollen and feverish.