There are many reasons why a two-month-old baby cries every day, such as being frightened, hunger, lack of calcium, indigestion and so on. 1. frightened: two months of the baby’s neurological development is still immature, when exposed to new things or new environments, will make the little child psychological frightened, thus causing the symptoms of crying. 2. Hunger: the mother’s milk secretion is not enough or the amount of milk powder feeding is not enough, easy to cause the baby’s hunger, thus causing the baby crying symptoms. 3. Calcium deficiency: Calcium can provide nutrients for children’s growth and development, and a large amount of calcium deficiency in the body will lead to the baby’s brain nerve excitation, which affects the quality of the child’s sleep, so that sleep is insufficient, which in turn leads to the symptoms of frequent crying. 4. Indigestion: too much food or incorrect feeding posture will lead to gastrointestinal indigestion, so that a large amount of food accumulation in the stomach and intestines, and then the baby will appear to cry. Two months baby crying every day, there may be other reasons, it is recommended to go to the hospital, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.