Tingling and swelling of the fingers may be related to excessive fatigue, or may be caused by peripheral neuritis, carpal tunnel syndrome and other reasons. 1. Excessive fatigue: If you have been engaged in manual labor for a long time, frequently lifting heavy objects, leading to excessive finger activities, resulting in the ligaments and tendons in the finger area being in a state of excessive fatigue for a long period of time, it may cause numbness and swelling of the fingers. 2. Peripheral neuritis: this disease can lead to damage to the peripheral nerves, resulting in impaired blood circulation in the damaged peripheral nerves, which may cause numbness and swelling of the fingers, and may also be accompanied by weakness, pain and other symptoms. It may be caused by metabolic disease, infectious disease or nerve compression disease. 3. Carpal tunnel syndrome: the disease can lead to the median nerve compression in the carpal tunnel, and the median nerve has an innervating effect on the fingers, when the median nerve is compressed, it may cause numbness and distension of the fingers, and may be accompanied by finger pain, weakness and other manifestations. Finger numbness and swelling may also be caused by other reasons, through reasonable rest, if the symptoms continue to fail to improve, you should seek medical attention as soon as possible, after a clear diagnosis of the cause, by the doctor’s guidance for treatment.