The baby is always crying before going to bed, considering the physiological or pathological factors, physiological factors such as failure to develop good work and rest habits; pathological factors such as intestinal flatulence, intestinal colic, etc., can cause babies to cry before going to bed. 1. Physiological factors: the baby sleeps too long during the day, did not develop good work and rest habits, the baby will not sleep at night, forcing the baby to sleep will feel uncomfortable, thus causing crying; in addition, hunger, the environment hot or cold, etc., can be caused by the baby can not fall asleep, showing that the situation of crying before bedtime. 2. Pathological factors: the baby’s digestive system is not well developed, easy to have intestinal flatulence, intestinal colic and other conditions, so that the baby feels abdominal discomfort or even pain, difficult to sleep, appearing before bedtime crying. The baby is always crying before bedtime, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.