Running leg soreness the next day usually can continue to run, but if the soreness is obvious and there is swelling in the leg, you should take rest and suspend running. 1. The situation that you can continue running Usually, leg soreness after running is because there is no exercise habit in the past, and sudden exercise or too much exercise causes the accumulation of lactic acid in the leg muscles, which leads to the symptoms of leg soreness. It is a normal physiological manifestation. If the symptoms of running sore legs are not particularly obvious, do not affect the contraction of the leg muscles, and there is no aggravation of symptoms during exercise, you can continue to run the next day. But pay attention to control the amount of exercise, running speed can not be too fast, running time should not be too long, so as not to aggravate the symptoms of soreness. 2. When you can’t continue running If the symptoms of leg soreness are more obvious and muscle contraction occurs during exercise, leading to aggravation of leg soreness, you can’t continue to run the next day, or else you will easily fall or even suffer from muscle strain. In addition, running the next day leg soreness such as accompanied by localized swelling, considering that there may be muscle and other soft tissue strains in the exercise process, this situation should be suspended running, pay attention to rest. Usually pay attention to do a good job warming up before running, after running if the symptoms of leg soreness, pay attention to rest appropriate stretching, help promote recovery. If the soreness is more serious, you need to consult a doctor for examination and targeted treatment under the guidance of a professional physician.