Diarrhea in the middle of pregnancy is related to the usual diet, food is too cold or spicy stimulating food, will easily stimulate the gastrointestinal tract to cause discomfort and lead to diarrhea, after the usual cold or moisture will also appear diarrhea phenomenon, or eat unhygienic fruits, spoiled food will be prone to diarrhea phenomenon. After the symptoms of diarrhea, it is best to check the stool routine to determine the condition and then take symptomatic treatment, caused by bacterial infection can eat cephalosporin with montelukast treatment, indigestion can eat bifidobacteria treatment, can play a role in regulating the spleen and stomach, to help digestion.