The 10-year-old child woke up crying in the middle of the night may be related to respiratory tract infection, mental stimulation, calcium deficiency and other factors. 1. Respiratory tract infection: If the child has a respiratory tract infection, coughing, coughing up phlegm, fever, nasal congestion, runny nose, muscle pain and other symptoms, affecting the child’s quality of sleep at night, waking up in the middle of the night, crying. 2. Mental stimulation: If the child is frightened by accidents during the day, or watch stimulating TV or listen to scary and horror stories before going to sleep, the cerebral cortex will still be in a state of excitement after going to sleep, and the phenomenon of waking up in the middle of the night and crying can occur. 3. Calcium deficiency: If the child is deficient in calcium, it will cause the cerebral cortex to increase in excitability during night sleep, which will show the phenomenon of waking up crying in the middle of the night. The 10-year-old child woke up crying in the middle of the night, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.