Nine-month-old babies crying more and more are mostly symptoms caused by physical discomfort, such as fever, cold, intestinal cramps and so on. Nine-month-old babies generally often cry less, if the frequent occurrence of the above symptoms need to be vigilant and disease factors, such as calcium deficiency, fever, colds, intestinal spasms, etc., parents should pay attention to observe the baby whether there are other accompanying symptoms, such as vomiting, diarrhea, abdominal distension, fever, excessive sweating, occipital baldness, and so on. Parents are advised to go to the hospital for relevant examinations in time when they find their babies with the above symptoms, and after clarifying the cause of the disease, actively treat the symptoms for a better prognosis.