Children hiccups are generally physiological phenomenon, do not have to deliberately stop, if the duration is too long need to consult a doctor to clarify the cause of the disease, targeted treatment. 1. When the baby inhaled cold air or cold, the diaphragm can appear spasm, triggering hiccups. In addition, when the baby drinks milk, the excessive air inhaled into the digestive tract, can also cause hiccups. These are normal physiological phenomena, the baby will not be accompanied by vomiting, diarrhea, poor spirit and other manifestations, after a period of time the hiccups can stop, there is no need to deliberately stop the baby hiccups. 2. If the baby has gastrointestinal infections, central nervous system infections, etc., hiccups can also occur, and the hiccups are persistent for a long time, the baby may be accompanied by poor mental health, poor diet, poor sleep and other manifestations, you need to actively seek medical attention to identify the cause of the disease, and cooperate with the treatment.