Level 1: Causes and Precautions for Fever in Pregnant Women 1. Causes of Fever in Pregnant Women Fever in pregnant women may be caused by common diseases such as colds and flu, or may be due to other reasons, such as bacterial infection, viral hepatitis, etc. In addition, pregnant women have low immunity and are susceptible to various bacterial and viral infections. 2. Precautions Pregnant women should pay attention to rest, drink plenty of water and avoid overexertion during fever. At the same time, keep the room well ventilated and avoid contact with other patients. Level 2: What medicine can pregnant women take if they have a fever? 1. Can it be used?