The cause of flatulence in babies half a month old should first be clarified, and then treated and regulated according to the cause. Common causes mainly include physiological factors, indigestion, lactose intolerance, milk protein allergy and so on. In terms of treatment, there are mainly general treatment and medication. 1. Physiological factors: If the baby’s abdomen is cold after half a month of birth, or if the baby has swallowed too much gas, it will lead to flatulence. No special medication is needed for this situation, parents should pay attention to the baby’s abdomen to keep warm, and pay attention to reasonable feeding, to avoid the baby to eat milk too quickly, to ensure that the nipple hole is the right size, is conducive to the relief. 2. Indigestion: If the baby was born half a month of indigestion, resulting in flatulence. The doctor can guide the application of the pediatric spleen, wake up the spleen and nourish the child granules and other drugs, is conducive to the relief of indigestion, thus helping to improve the flatulence. 3. Lactose intolerance: If the flatulence is caused by lactose intolerance in babies half a month old, it can be treated with lactose supplementation under doctor’s supervision. Lactase can be supplemented under the guidance of the doctor, which is conducive to enhancing the baby’s ability to digest lactose, thus relieving flatulence. 4. Milk protein allergy: If it is due to half a month old baby milk protein allergy, caused by flatulence. Can be directed by the doctor to apply bifidobacteria, lactobacilli and other probiotics, regulating intestinal flora, improve the stomach bloating. Breastfeeding is recommended, and if you can’t breastfeed, amino acid milk powder is recommended. Half a month after the birth of the baby’s stomach flatulence, parents should avoid blindly to the child abuse of drugs, need to be directed by the doctor for specific causes of treatment and regulation.