What should pregnant women pay attention to when they have diarrhea? During pregnancy, pregnant women\’s body functions are relatively weak, and their resistance to bacterial infections will also decrease. Therefore, once diarrhea occurs, they must take timely measures for conditioning and treatment to ensure the health of themselves and their babies. What should I pay attention to in terms of diet? 1. Drink more water. Diarrhea can cause diarrhea in pregnant women