Vomiting and diarrhea are the most common clinical symptoms of gastrointestinal diseases. 1, pregnant women who vomit and have diarrhea are usually considered to be caused by inappropriate diet during pregnancy; 2, it may be caused by eating too much cold food or too greasy food, resulting in indigestion or gastrointestinal tract dysfunction and causing vomiting and diarrhea; 3, it may also be caused by eating food contaminated by various pathogenic microorganisms or Acute gastroenteritis caused by eating food contaminated by various pathogenic microorganisms or rotten and spoiled food. Pregnant women should go to a regular public hospital as soon as possible for routine blood and stool tests to clarify the diagnosis and carry out appropriate treatment under the guidance of the doctor. Pay attention to diet control and avoid the intake of oily food and unclean food.