Why do fleas prefer to bite pregnant women?

The claim that fleas prefer to bite pregnant women actually has no clear scientific basis. Flea bites are not specific to pregnant women, but rather are influenced by multiple factors such as damp environments, poor ventilation, and inadequate hygiene. These conditions may make it easier for fleas to approach and bite humans, including pregnant women. Additionally, due to physiological changes during pregnancy, pregnant women may feel itching or discomfort more easily. However, this does not mean that fleas prefer to bite them. In fact, flea bites are related to factors such as an individual's body odor, body temperature, and the concentration of carbon dioxide exhaled. These factors do not differ significantly between pregnant and non-pregnant individuals. Therefore, it is inaccurate to simply assume that fleas prefer to bite pregnant women. To prevent flea bites, both pregnant women and others should maintain environmental hygiene, regularly clean and disinfect their living areas, and reduce flea breeding and reproduction. At the same time, if adverse symptoms occur after flea bites, individuals should seek medical attention promptly and follow medical advice for treatment.