Babies who suddenly cry when they fall asleep at night may be caused by hunger, intestinal cramps, calcium deficiency and other factors.
1. Hunger: Because infants’ stomach capacity is small and the amount of milk they take in each time is small, if they are suddenly hungry at night when they are sleeping, it will cause the symptom of sudden crying. This is usually a normal physiological phenomenon and will be relieved after feeding the baby.
2. Intestinal spasm: if the baby sleeps at night, not do a good job to keep warm, will lead to the abdomen is cold, so that the intestinal smooth muscle spasmodic contraction, so that the abdominal pain symptoms, thus causing the baby fall asleep at night suddenly cry.
3. Calcium deficiency: Because of the rapid growth and development of the bones of infants, a lack of calcium in the body will lead to increased excitability of the brain nerves, thus triggering the symptom of sudden crying in the night, accompanied by night sweats (abnormal sweating after falling asleep, but waking up sweating stops), shaking and other symptoms.
There may be other reasons for babies to suddenly cry at night, so you should go to the hospital for a complete examination and cooperate with the doctor to give targeted treatment.