Fingers swollen for no reason without itching may be traumatic factors, may be kidney disease, may be poor circulation, may be rheumatoid arthritis and so on. 1. traumatic factors: finger swelling for no reason without itching, may be caused by traumatic factors, such as sprains. 2. Kidney disease: patients with nephritis will have swollen fingers when they get up in the morning, which will affect the normal bending of the fingers, but there is no pain or itching sensation. 3. Poor blood circulation: restricted venous return may lead to finger swelling, usually due to finger pressure during sleep, which can cause bruising and finger swelling. 4. Rheumatoid arthritis: this is an immune disease, usually in the presence of inflammation, there will be symptoms of finger swelling, but there is no obvious pain and itching. Finger swelling for no reason without pain and itching, in addition to the above reasons, there may also be other factors, in short, if there is no recovery, it is recommended to the hospital examination and treatment.