Swollen hands and feet can be caused by the following reasons: first, rheumatoid, rheumatoid is a common cause of swollen hands and feet, rheumatoid can lead to multiple swelling of fingers and toes after waking up in the morning or after waking up, which can be accompanied by morning stiffness and pain in the joints, then blood tests and X-rays of hands and feet should be taken to diagnose and treat. Second, ankylosing spondylitis, ankylosing spondylitis in the more serious stage can involve a number of joints throughout the body, especially the joints of the hands and feet, then there can be morning stiffness, can have morning swelling of the hands and feet, and can be accompanied by pain in the sacroiliac joints and lumbar spine pain, then go to the Department of Rheumatology and Immunology for blood tests and X-rays of the spine, sacroiliac joints to diagnose and treat.