Drinking lactobacillus can relieve constipation. Western medicine believes that constipation is caused by lack of intestinal dynamics and insufficient intestinal stimulation. Some constipation is caused by excessive use of antidiarrheal drugs during diarrhea and dysentery. Coupled with the abuse of antibiotics in recent years, the probiotics in the intestinal tract of children, mainly lactobacilli, have been seriously damaged, leading to a decrease in children’s resistance. Lactobacillus has the function of increasing the beneficial intestinal flora, improving the gastrointestinal function and restoring the balance of intestinal flora. At the same time, the lactic acid secreted by lactobacilli can lower the pH value of the intestine, inhibit the harmful intestinal flora, and increase the peristalsis of the intestine, thus playing a role in preventing diarrhea, enteritis and constipation. Not only can lactobacillus relieve constipation, but there are many fruits in daily life that can also prevent constipation. China’s earliest medical classical medical text “Yellow Emperor’s Classic of Internal Medicine” has a record on the principles of diet, five fruits for help, five fruits refers to dates, plums, apricots, chestnuts, peaches, now refers to all kinds of fresh fruit. In terms of constipation, it is recognized that bananas, kiwi, dragon fruit, etc. have a better laxative effect, can eat more. But try to eat less hot fruits, such as jujube, lychee, cinnamon, cherries, etc., flat fruits such as apples, peaches, etc. can also be eaten. The general principle is that hot body heat disease can not eat hot fruit, choose to eat seasonal fruit, do not eat anti-seasonal or ripe fruit.