Infants always pooping may be caused by normal physiological reaction, infectious factors, non-infectious factors and other reasons. 1. Normal physiological reaction: Usually infants are young and their digestive system is immature, so it is normal for them to have more frequent bowel movements. If there is no abnormality in the character of the stool and no other discomfort, it can be observed first. 2. Infectious factors: Viruses, bacteria, fungi, parasites and other infections may cause babies to poop all the time. 3. Non-infectious factors: Usually include over-feeding too fast, early feeding of inappropriate complementary foods such as fats, vegetables and fruits rich in dietary fiber, and feeding formula that causes allergies in infants, which may cause infants to poop all the time. There may also be other reasons for babies to poop all the time. It is recommended to go to the hospital in time for a complete examination to identify the cause of the problem, and then give targeted treatment or therapy under the guidance of the doctor.