Swelling and pain in the joints of the fingers may be caused by trauma, rheumatoid arthritis, gout and other reasons. 1. Trauma: it may be due to external collision, finger joints for a long time weight-bearing causes such as excessive stretching, twisting of finger joints, which can appear at the joints of the head of the finger swelling and pain phenomenon. 2. Rheumatoid arthritis: it is a chronic, systemic autoimmune disease with erosive, symmetrical polyarthritis as the main clinical manifestation. Due to the inflammation of the stimulation of the joints of the fingers can appear swelling and pain, morning stiffness and other phenomena. 3. Gout: gout patients due to long-term elevated uric acid, uric acid crystals precipitate the formation of gout stones, finger joints a large number of deposits of gout stones can cause joint bone destruction, fibrosis of periarticular tissues, etc., the clinical manifestations of persistent joints redness and swelling, pain, skin temperature rise, joint dysfunction, and even deformity. In addition, the phenomenon of swelling and pain at the joints of the fingertips can also be seen in other diseases, and it is recommended that patients go to the hospital in time to avoid delay.