Whether children with myocardial injury can recover to the same as before needs to be analyzed according to the severity of the heart machine damage, and most children can recover. Because the severity of myocardial injury is different, for the prognosis of recovery and effect is different from person to person. In general, if the symptoms of myocardial damage in children are relatively mild, after receiving timely standardized treatment and reasonable care, most patients can have relatively good recovery results. If the damage is more serious and without timely treatment or proper care, the prognosis may be worse. It is recommended to strengthen the child’s nutrition, eat more food rich in protein, vitamins and calcium, and at the same time pay attention to adjust the child’s work and rest, don’t stay up late, and ensure sufficient sleep. If children have myocardial injury, must promptly consult a doctor for examination and active treatment, so as not to leave sequelae, affecting children’s health.