There is no fastest way to stop diarrhea in pregnant women in clinical practice. Pregnant women with diarrhea is generally the cause of treatment, caused by pregnant women with diarrhea may be physiological, pathological reasons. Physiological causes are mostly caused by changes in hormone levels in the body, which do not require special treatment; pathological causes are mostly considered to be non-infectious factors as well as those caused by infectious factors, which need to be clearly identified after the cause of the symptomatic treatment. 1. Hormonal changes: after pregnancy, the body’s hormone levels will change significantly, gastric emptying time is prolonged, small intestinal peristalsis is weakened, when stimulated by the outside world will cause diarrhea. This phenomenon is a normal physiological phenomenon, and does not require special treatment. 2. Non-infectious factors: for example, pregnant women with improper diet, consumption of spoiled food, seafood, rough food can induce gastrointestinal abnormalities, and ultimately cause diarrhea symptoms. At this time, you need to fast, oral with a small amount of salt and sugar “rice soup”, to replenish the water lost due to diarrhea, as well as electrolytes; more serious symptoms of pregnant women, under the guidance of the doctor to take lactic acid or lactase inhibitor tablets to regulate the intestinal flora, so as to alleviate the symptoms of diarrhea. 3. Infectious factors: such as bacterial infection, viral infection will stimulate the human digestive system, thus inducing the symptoms of diarrhea. It is recommended that patients take erythromycin or cephalosporin under the guidance of a doctor for treatment, because such drugs have anti-inflammatory and bactericidal effects, which have a certain effect on alleviating diarrhea. If a pregnant woman has diarrhea symptoms, she should go to the local hospital in time to find out the problem as early as possible and treat it as soon as possible.