Pregnant women with diarrhea may be caused by indigestion, cold, acute gastroenteritis and other reasons. Need to give anti-diarrhea, anti-inflammatory, keep warm and other treatments. 1. Indigestion: Pregnant women who eat unclean, spoiled, raw and cold food may cause gastrointestinal discomfort and thus abdominal pain, diarrhea and other symptoms of indigestion. 2. Cold: pregnant women because of the decline in resistance, if cold easily cause gastrointestinal spasm and lead to abdominal pain and diarrhea symptoms, at this time to pay attention to warmth, wear more clothes to avoid getting cold. 3. Acute gastroenteritis: Pregnant women who are infected by bacteria or viruses during pregnancy are prone to acute gastroenteritis symptoms, such as abdominal pain and diarrhea. At this time, we should go to the hospital as soon as possible, under the guidance of the doctor to give antidiarrheal (such as montelukast), anti-inflammatory (such as cephalosporin antibiotics) and other symptomatic treatment. Pregnant women who experience diarrhea during pregnancy are advised to go to the hospital as soon as possible for appropriate examination and treatment under the guidance of the doctor.