7 months baby seven or eight days stool once is not normal, 7 months baby seven or eight days stool once consider the existence of constipation, need to consult a doctor for examination. Although 7 months baby gastrointestinal function is not fully developed, but 7 months baby normal should be 1-2 times a day stool, or two days stool 1 time frequency, 7 months baby seven or eight days stool frequency is obviously not normal, may be caused by constipation. Constipation can be caused by daily supplemental food add irrational, intestinal peristalsis is relatively small, intestinal allergies, intestinal flora disorders, gastric congenital intestinal disorders and other factors will lead to 7-month baby constipation symptoms. It is recommended that parents find 7-month-old babies seven or eight days stool once situation, timely take the baby to the regular hospital for detailed examination, to avoid adverse consequences.