Children crying in bed at night may be caused by intestinal spasm, may also be caused by rickets, and may also be caused by night terrors. 1. intestinal spasm: intestinal spasm is a disease caused by the strong contraction of the smooth muscle of the intestinal wall, the disease may be related to cold, overeating and other factors, the disease of the child may appear at night sleep crying symptoms. 2. Rickets: Rickets is a disease of calcium and phosphorus metabolism disorder due to vitamin D deficiency, children with this disease may have excessive sweating, occipital baldness, irritability, night terrors and other symptoms, this disease can lead to the symptoms of the child sleeping and crying at night. 3. Night terrors: night terrors is a disease related to genetic, psychological, children’s brain development is not yet sound and other factors, the disease can lead to the symptoms of the child sleep crying at night. In addition to the above diseases, other factors can also lead to the child’s symptoms of crying in bed at night. If the symptoms continue to be unrelieved, it is recommended to consult a doctor in time to find out the cause of the problem and ask the doctor to deal with it.