If the baby has a prolonged period of intrauterine oxygen deprivation or asphyxia after birth for more than 3~5 minutes, it may affect the baby’s intelligence. Baby if intrauterine hypoxia 1, 2 days generally will not have a great impact, at this time, as long as the mother can timely supplemental oxygen, will not affect the normal development of the fetus and intellectual development, but each fetus to the sudden change in the environment of the adaptive capacity as well as the ability to resist are not the same, the specific time can not be generalized. Human brain cells are very sensitive to hypoxia, and neonatal hypoxia can generally be resuscitated and relieved within 3-5 minutes, that is, within 3-5 minutes, if the hypoxia is corrected in time, it generally will not affect the intelligence. However, if it exceeds 3-5 minutes, it may affect the baby’s intelligence. If chronic hypoxia is suspected in the fetus during pregnancy, it is recommended to go to the hospital in time for fetal heartbeat monitoring and oxygen therapy. If the baby has symptoms such as weak crying, body thrashing, easy to tilt the head back or too soft body after birth, the baby should seek medical consultation promptly to find out the cause.