The main cause of straining to poop and red face in newborns is due to dry stools. The reason for dry stools, or constipation, is due to several reasons: first, due to gastrointestinal dysfunction, because the newborn is relatively young, the intestinal flora is not fully established smoothly, plus the anal sphincter muscle group is not well coordinated, which can cause the appearance of constipation. For this situation, you can apply probiotics such as Pepcid and Mamma’s Love for adjustment. After the intestinal flora is adjusted and balanced, plus the anal sphincter is gradually coordinated as we get older, this situation will be improved. Secondly, due to congenital megacolon, because of congenital megacolon, the intestinal nerve cells are absent, thus causing stubborn constipation. In this case, surgery should be performed in a timely manner.