Children with high cardiac enzymes may mostly just have symptoms of cold and fever, while a few may have liver disease, skeletal muscle disease, leukemia, etc. In severe cases, they may have symptoms such as tightness in the chest, shortness of breath, fever, and bone pain. Cardiac myosin represents a general term for a number of enzymes in cardiac muscle tissue, but it is also contained in a certain amount in other tissues. Generally, a small amount of cardiac myosin can be detected in the blood, and after damage to the cardiac muscle cells or tissues containing this type of enzyme, the cardiac myosin is released into the bloodstream in relatively greater amounts, and elevated levels of cardiac myosin can be detected in the bloodstream. Elevated cardiac enzymes may be found in children with colds, liver disease, skeletal muscle disease, leukemia, etc. It is recommended to actively rule out the possible causes of elevated cardiac enzymes. If there is a combination of chest tightness, chest pain, dyspnea, fever, bone pain, etc., it is necessary to find out the cause of the disease as soon as possible and receive regular professional treatment.