Patients need to pay attention to maintaining private hygiene, medication and lifestyle adjustment: 1. Maintain private hygiene: Usually, vaginal odor does not occur during pregnancy. However, if a pregnant woman has a combination of infections such as mycosis fungoides or trichomoniasis, vaginal odor may occur. For patients with mild symptoms, they should keep their vagina clean and hygienic by choosing cotton underwear and changing and washing them in time. You should also keep your private parts dry and flush them with warm water every night or 1 day apart, avoid scratching, hot water and soap. 2. After identifying the pathogen, active treatment should be carried out to avoid retrograde infection of inflammation, which may endanger the health of the fetus and the pregnant woman. In addition, when carrying out medication, patients are advised to choose local medication and avoid using drugs that affect the fetus; 3. Adjusting lifestyle: heavy odor in the lower body during pregnancy also requires attention to strengthening resistance, more intake of nutritious things, choosing fresh fruits and vegetables, eating less and more meals, and moderate exercise.