2 years old baby sleep on his stomach is not good for the body, the baby’s health and growth and development have some negative impact. Even if the baby likes to sleep on his stomach, parents are advised to correct the baby’s sleeping position after he falls asleep, so that the baby sleeps in a flat position or sleeps on his side. Usually, sleeping on your stomach may affect the baby’s breathing, spine development and sleep quality, etc. 1, affect breathing: as the baby sleeps on his stomach, the mouth and nose may be blocked, the baby will have difficulty breathing, serious cases can lead to asphyxiation, which can lead to accidents; 2, affect the development of the spine: the baby sleeps on his stomach for a long time, the spine may appear to develop deformities, serious baby May appear scoliosis; 3, affect the quality of sleep: baby sleep quality is affected, may affect the secretion of growth hormone, resulting in reduced secretion of growth hormone, resulting in the performance of the baby growth retardation. In addition, babies like to sleep on their stomachs, in addition to personal preferences, but also to be alert to the presence of certain pathological factors: 1, gastrointestinal diseases: sometimes, due to the baby bloating, abdominal pain, colic, gastrointestinal cramps, etc., babies will like to sleep on their stomachs. Because lying down to sleep abdominal muscles in a relaxed state, can effectively relieve the symptoms of abdominal distension and abdominal pain, but also to promote the gastrointestinal tract peristalsis, to help the abdominal gas discharge, thereby relieving the baby’s abdominal discomfort; 2, respiratory diseases: some babies like to lie down to sleep, is due to the baby is in the upper respiratory tract infection, accompanied by nasal congestion. When sleeping on their stomachs, can effectively relieve the symptoms of nasal non-ventilation. In this case, the baby sleeps on his back, adults must accompany the baby to avoid asphyxiation due to the mouth and nose is blocked.