The pain in the first joint of the right finger is usually caused by chronic strain, trauma, arthritis, bacterial infection and other reasons. 1. Chronic strain injury: due to excessive use of the hand such as long time practicing, can lead to excessive force on the fingers, long-term fatigue, causing pain in the finger joints, usually after appropriate rest, it can be gradually relieved. 2. Trauma: such as finger collision, extrusion and other traumatic injuries, can lead to finger tendon and surrounding soft tissue damage, or even phalangeal fracture, there will be pain in the joints of the fingers, accompanied by finger swelling and localized bruising. 3. Arthritis: rheumatoid or rheumatoid arthritis, under the stimulation of cold or humidity, can cause pain and swelling of the finger joints, which can also be accompanied by pain in other joints of the body. 4. Bacterial infection: when the fingers are attacked by external bacteria and other microorganisms, it may cause local infection, redness, swelling, fever and pain. When the symptoms of finger joint pain occur, it is recommended that the patient go to the hospital for examination and standardized treatment after clarifying the cause of the disease.