The phenomenon of leg swelling after exercise: 1, may be due to varicose veins in the lower extremities, after a long time of running, resulting in obstruction of venous return and swelling. 2, may also be the usual long time of running, excessive wear and tear of the knee and ankle joints, stretching, will also appear obvious leg swelling phenomenon. 3, there is also a long time of running, resulting in increased pressure of venous return, causing leg bruising, but also This can lead to swelling. It is recommended to avoid strenuous exercise, bed rest and elevation of the affected limb, which will slowly subside in a short time. If the leg swelling is not relieved after rest, and it is progressively aggravated, you must go to a regular hospital in a timely manner and choose a reasonable treatment after clarifying the cause, so that the leg swelling can be relieved in a timely and effective manner.