If the hand is swollen, stiff and inflexible after getting up in the morning, and the time from the morning is more than one hour, or more than half an hour, rheumatoid arthritis should be highly suspected. If the swollen and stiff joint is in the proximal interphalangeal joint of the metacarpophalangeal joint, the patient is basically sure that it is rheumatoid arthritis. If it is in the terminal interphalangeal joint or the distal interphalangeal joint, it is more likely to be osteoarthritis, and the diagnosis can be confirmed by laboratory tests at the rheumatology department of the hospital.