The baby is always farting not poop, may be and save belly, constipation, insufficient breast milk intake and other factors. 1. save belly: save belly generally occur in less than three months of the baby, mainly because with the growth of the age of the month, the baby digestion and absorption ability will be enhanced, breast milk or milk powder in the nutrients will be absorbed, produce the residue naturally less, so the discharge of the stool will be correspondingly reduced, but there may be a venting of the situation. 2. Constipation: constipation will also appear farting without poop, and will also affect the baby’s mental state, crying, bloating, nausea and other phenomena. 3. Insufficient breast milk intake: the baby’s breast milk intake is insufficient, coupled with their own digestive ability is relatively strong, so eat into the breast milk are basically digested, there is no residue discharged, but there may be a gas situation. The baby is always farting not poop may also have other reasons, it is recommended to go to the hospital in time for relevant examinations, clear causes and then actively treat the symptoms.