The swelling of fingers after walking after dinner is considered physiological factors and pathologic factors. 1. Physiological factors: when walking, both upper limbs hang down for a long time, causing blood flow obstruction and swelling, generally swelling can disappear after changing posture or resting and applying local hot compresses. 2. Pathological factors: renal diseases (such as glomerulonephritis, nephrotic syndrome), heart disease (such as right heart failure) and thyroid disease (such as hyperthyroidism, plus or minus), etc., may appear limb swelling and other similar edema symptoms, it is recommended to improve the blood and urine routine, cardiac and renal function, cardiac ultrasound and nails and other tests. There may be other reasons for the swelling of the fingers after walking after dinner, and it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.