The destruction of myoglobin produced by muscle cells during fitness can cause a mild elevation of total bilirubin. Elevated total bilirubin during fitness can also be caused by other reasons such as hepatitis. Rapid rope skipping, fast running and other strenuous exercise during fitness, muscle cells will produce a lot of myoglobin, myoglobin destruction can cause mild elevation of total bilirubin, usually rest for a few days can be relieved, belong to the physiological phenomenon, do not need special treatment. If the total bilirubin is elevated after fitness, not relieved after rest, accompanied by fatigue, abdominal distension and other uncomfortable symptoms, or transaminases and other indicators of abnormalities, may be hepatitis, cirrhosis, and other diseases resulting in damage to the liver cells, bilirubin excretion, binding, uptake and other obstacles, resulting in the total bilirubin in the blood elevated significantly. Fitness to rule out strenuous exercise and other physiological causes of total bilirubin elevation, should promptly seek medical attention, under the guidance of the doctor to identify the causes, timely treatment.