It is normal for newborns to fart. Generally, newborns swallow too much air when they eat milk, and these gases are gradually expelled with intestinal peristalsis, and they will fart. In addition, the baby’s intestinal digestion of protein will also produce some gas, with intestinal peristalsis out of the body, will also fart. If your baby farts frequently, most of the time it indicates a cold or indigestion, especially if the baby farts have a distinct sour smell, it indicates that there is poor digestion, and then you need to treat your baby accordingly. Generally, you can give your baby oral probiotics to regulate the function of the intestinal tract, which will help improve the stool properties, help your baby regulate the intestinal tract function, and improve the fart odor.