Swollen fingers after getting up in the morning may be caused by poor venous return due to prolonged lying on one side during sleep, which leads to swollen fingers. In addition, swollen fingers may also be caused by trauma. Patients with strained finger muscles and ligaments caused by strenuous activities may experience swollen and painful fingers. In addition, finger swelling may also be caused by rheumatoid arthritis and other diseases. Patients suffering from rheumatoid arthritis may experience morning stiffness in the morning, and finger movement may not work after waking up, and finger joint swelling and pain may occur, and finger deformity may also occur in serious cases. In this case, it is important to take rest and avoid straining, and to elevate the affected limb properly to help relieve the symptoms of finger swelling. If the symptoms cannot be relieved, it is also necessary to go to the hospital to improve the relevant examination to clarify the diagnosis.