There are several reasons for the swelling of the fingers. The first cause is peripheral neuritis, which often occurs in the elderly, especially the elderly, combined with diabetes, hypertension and hyperlipidemia, which can be treated by controlling blood pressure, blood sugar and lipids, as well as taking some oral nerve-nourishing drugs. For example, methylcobalamin, vitamin B1, etc. The second reason is to exclude the swelling of joints caused by rheumatism and rheumatoid diseases, you can go to the Department of Rheumatology and Immunology for examination and testing of the four rheumatism items, and according to the results of the examination, you can select targeted drugs for treatment. The third cause is prolonged hand labor, such as prolonged use of hands to surf the Internet, play games, etc., can also cause this symptom.