Why do babies suddenly cry in their sleep?

The baby fell asleep and suddenly cried, the main consideration and vitamin D deficiency, intussusception, nightmares or starvation, etc., need to be based on the specific causes of the targeted choice of regulatory programs, so as not to affect the baby’s sleep quality.
1. Vitamin D deficiency: in the process of the baby’s growth and development, if there is a vitamin D deficiency, it is easy to affect the quality of sleep, resulting in the baby’s sleep is disturbed, waking up at night to cry.
2. Intussusception: Sudden abdominal pain is one of the common manifestations of pediatric intussusception, which is manifested as sudden paroxysmal crying accompanied by pallor in young children, which lasts for a few minutes and then stops, and then recurs again after an interval of 15 minutes to half an hour or so, and there may also be blood in the stools, abdominal masses and other manifestations, which are recommended to go to the hospital in time for medical treatment.
3. Nightmares: during the growth and development of the baby, the nerve function is gradually developing and perfecting, in the process of sleeping, due to the transmission of nerve signals, the performance of nightmares may occur, so the baby may be frightened in the process of sleeping and suddenly cry out.
4. the state of hunger: if the baby sleeps for a long time, in the process of sleep, hunger, can cause gastrointestinal discomfort, so that the baby fall asleep suddenly cry performance.
The baby fall asleep suddenly cry, parents should pay attention to observe, such as occasional, after breastfeeding, appeasement can be relieved usually do not need to worry too much. If it can not be relieved, it is recommended to go to the hospital in time.