Tummy saving may last for 8 to 10 days, or it may last for 1 month or even several months, depending on the individual. Tummy retention is a physiological phenomenon that occurs easily in infancy and childhood, and usually starts after one month and continues until after the infant has added complementary foods. The infant may have a bowel movement only once every 2 to 3 days or even several days, but there is no discomfort, and the stool quality is normal, the mental state is good, and the milk intake is normal, and the symptom may continue for a few days and then be relieved on its own, or it may continue for a few months. There is generally no special treatment needed when the stomach is saved, but it is appropriate to let the infant drink some warm water and massage the abdomen, which can help to form the defecation reflex. However, if the infant’s bowel movements are infrequent and accompanied by difficulty in defecation, it is considered to be a sign of constipation, and the infant can be taken to the hospital for consultation.