Babies crying more than 2 months may be caused by physiological reasons such as hunger, or by pathologic reasons such as physical discomfort. 1. Physiological: infants who themselves have no disease, just some needs are not met and cause crying, such as mosquito bites, overheating or wrapping too tight, defecation caused by discomfort, hunger, etc., in this case, for the baby to solve the problem, it will stop crying. 2. Pathological: if the baby is not comfortable, pain, itching, etc. will cause the baby to cry, some will have other clinical manifestations, such as vomiting, urination and defecation abnormalities, skin changes, nasal congestion and runny nose, etc., these clinical manifestations, you need to take the baby to the hospital in a timely manner, to clarify the cause of the disease for standardized treatment. There are other reasons for infants to cry more than 2 months, parents are advised to take their children to regular hospitals for examination.