Riding leg soreness is generally caused by physiologic buildup of lactic acid, but pathological factors such as muscle tears cannot be ruled out, and these two factors cause leg soreness relief in different ways. Leg soreness after or during riding is generally due to physiological factors. Muscle anaerobic exercise, by glucose energy supply to generate lactic acid, after strenuous exercise in the muscle produced a large number of lactic acid can not be removed in a timely manner, lactic acid in the muscle buildup, it will make the legs feel sore. If some people usually have small amount of exercise and weak athletic ability, muscle soreness will also occur after light exercise. If the muscle soreness is caused by lactic acid buildup, it can be relieved by resting at home for a while. If it is not relieved by rest and the muscles are still sore, it is necessary to consider whether there is a possible muscle tear, and it is recommended to go to the hospital to consult a doctor for further examination to make a clear diagnosis. If the diagnosis is clear, the affected area can be treated conservatively with rest, cold compress, compression and elevation to promote recovery. To summarize, cycling leg pain is generally recommended to rest at home, if rest at home can not be relieved, we need to consider whether there is a possible muscle tear, it is recommended to go to the hospital for treatment, and maintain a regular work and rest, is conducive to the recovery of the body.