Finger stiffness and pain in the morning may be caused by tenosynovitis, osteoarthritis, rheumatoid arthritis and other factors. 1. Tenosynovitis: it may be related to chronic strain injury, when sleeping at night, without good care, resulting in localized cold, which may aggravate tenosynovitis, in the morning when you get up, the finger will be stiff, painful symptoms, and in severe cases, it will lead to joint activity restriction. 2. Osteoarthritis: For example, prolonged manual labor or cold finger joints may cause aseptic inflammation of the finger joints, resulting in osteoarthritis, which often causes pain and stiffness when waking up in the morning, and may be accompanied by redness and swelling. 3. Rheumatoid arthritis: an autoimmune disease that can cause morning stiffness and pain in the joints of the fingers, and in severe cases, can lead to deformities in the joints of the fingers. Finger stiffness and pain in the morning, and frequent, may be the existence of disease factors, it is recommended to consult a doctor for examination and treatment.