Diarrhea in the second month of pregnancy is treated with drugs such as Bifidobacterium triptans, probiotics and montelukast. Women’s body immunity decreases during pregnancy, bad eating habits and irritating food can cause stimulation to the gastrointestinal tract and cause diarrhea manifestations when the gastrointestinal tract moves rapidly. Most patients are suffering from enteritis due to cold in the abdomen or bacterial-viral infection. They should go to the hospital for routine stool examination in time, and when it contains white blood cells, it may be a bacterial infection. The symptoms can be improved by taking Bifidobacterium trituberculatum capsule orally. The main ingredients inside are Bifidobacterium and Enterococcus faecalis, which can adjust the intestinal flora of human body, remove the harmful bacteria in the intestine, promote the digestion and absorption of nutrients in the body, enhance the resistance of the intestine and reduce the symptoms of diarrhea and constipation. Sometimes it is determined that the diarrhea is a bacterial infection and antibiotics are needed, but they need to be applied under the guidance of a doctor. When diarrhea is serious, you can use montmorillonite to stop diarrhea. When no white blood cells are found during the examination, it is considered that it is caused by cold in the abdomen and can be used to stop diarrhea through montmorillonite. At the same time, attention should be paid to keeping the abdomen warm from cold and drinking more water to prevent dehydration.