Babies crying at night may be caused by environmental factors, gastrointestinal discomfort, lack of vitamin D or calcium.
1. Environmental factors: it may be due to the sleeping environment is not conducive to sleep, such as the environment is relatively noisy, not quiet, or the door closing sound is too heavy, may also be due to the light is too strong and so on to cause the baby crying at night hard to fall asleep.
2. Gastrointestinal discomfort: improper feeding can easily lead to indigestion, bloating, stomach discomfort, etc. It may also be due to poor gastrointestinal motility, and intestinal cramps, abdominal pain, etc., leading to infants crying at night and difficult to sleep.
3. Lack of vitamin D or calcium: If the lack of vitamin D or calcium will lead to calcium deficiency in the body, increased nerve excitability, easy to be irritable, hyperactivity, resulting in babies crying at night hard to fall asleep.
There may be other reasons why babies cry at night and have trouble falling asleep, so it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.