Swollen fingers in the morning are more commonly associated with rheumatoid arthritis and osteoarthritis. The first and most common is rheumatoid arthritis, which is an immune-mediated erosive arthritis that most often involves both wrists, the proximal interphalangeal joints and metacarpophalangeal joints of both hands, with morning stiffness, and other more common joints such as both knees, both ankles, both elbows, both shoulders, and many others. Second, osteoarthritis, the disease most often involves the distal interphalangeal joints of both hands, the patient can also show morning stiffness, but often for a relatively short period of time, generally no more than half an hour, while rheumatoid arthritis morning stiffness time is generally more than an hour. Therefore, if you have swollen fingers after waking up, first go to the rheumatology department and check blood count, blood sedimentation, C-reactive protein, rheumatoid factor, CCP, etc. to clarify the diagnosis.