The child cries every night, according to different reasons to take different treatments. The following situations are common: 1, irregular sleep and rest time, the baby sleeps too much during the day, which leads to nighttime excitement and crying, so it is necessary to reasonably adjust the baby’s work and rest time. 2, vitamin D deficiency rickets, prone to psycho-neurological excitability manifestations, obvious nighttime crying, excessive sweating, occipital baldness, squared skulls, rib cage outwardly turned, etc., give supplemental vitamin D and calcium, more outdoor activity After sunbathing and eating more calcium-rich food, it will gradually improve. 3, difficult to raise type temperament, each person’s temperament is different, can be divided into difficult to raise type, easy to raise type and the middle type. Difficult to raise type temperament baby crying at night, and even affect the adult sleep, need to go to the hospital for temperament assessment, if for difficult to raise type temperament baby, then early intervention should be given.