UTI in the elderly does not usually cause hand stiffness. The cause of hand stiffness is generally considered to be due to degenerative osteoarthropathy, rheumatoid arthritis, tendinitis of flexor tendons and cysts or soft tissue tumors. 1. Degenerative osteoarthropathy: commonly found in middle-aged and old-aged patients, it will cause degenerative changes in some joints, which will easily lead to stiffness and pain in finger joints, and bone friction sound may appear when some joints are moving. 2. Rheumatoid arthritis: patients with rheumatoid arthritis often have symmetrical morning stiffness, pain and deformity of the finger joints, which can be alleviated after activities, and may be accompanied by fever, loss of appetite, fatigue and fatigue and other discomforts. 3. Flexor tendon tenosynovitis: common in the thumb, middle finger and ring finger, local tendon tendon sheaths can appear non-specific aseptic inflammation, which often causes finger popping sound, accompanied by joint pain, and in severe cases, can also cause stiffness, flexion and extension of the activities of the limitation and other symptoms. 4. Cysts or soft tissue tumors: joint cysts or soft tissue tumors can cause joint activity limitation, thus causing stiffness and pain in fingers and other discomfort symptoms. If there is stiffness and discomfort in finger joints, it is suggested that patients should go to regular hospitals in time, complete the relevant examinations according to the doctor’s instructions, and standardize the diagnosis and treatment under the doctor’s guidance.