Usually only lactic acid accumulation without other discomfort, it is possible to continue to exercise; however, if accompanied by severe muscle pain or lactic acid levels are too high, it is recommended to stop exercising in time to avoid excessive exercise to cause certain damage to the body. Lactic acid is an intermediate product of glucose metabolism in the body during exercise, when exercise is relatively excessive, that is, more than the body tolerated aerobic exercise intensity, can lead to lactic acid can not be broken down into water and carbon dioxide in a timely manner, resulting in insufficient oxygen supply, thus forming anaerobic metabolism, and then cause a large amount of lactic acid buildup in the body. As a normal physiological reaction, lactic acid accumulation can be gradually absorbed by the body on its own, so you can continue to exercise without any special discomfort. As lactic acid is mainly a product of incomplete aerobic metabolism of the body, it is recommended to choose light aerobic exercise, such as jogging, cycling, rowing, etc., or moderate stretching exercises to relieve muscle fatigue caused by lactic acid accumulation, and to a certain extent to promote the body’s metabolism and accelerate the speed of lactic acid removal. If the muscle has serious pain can not be tolerated, it is recommended to stop exercising, then you can promote blood circulation through hot compresses, massage, physical therapy, etc., so as to accelerate the metabolism of lactic acid, to a certain extent conducive to pain relief. In addition, lactic acid buildup can also be seen in certain diseases, such as mitochondrial disease, diabetes, etc. Lactic acid buildup is due to abnormal metabolism of the body, should be judged according to the specific situation can tolerate the intensity of exercise.