Vaginitis during pregnancy is a common condition. Once it occurs, it is recommended to go to the obstetrics and gynecology department of the hospital in time for standardized treatment under the guidance of the doctor. The changes in hormone levels during pregnancy can cause changes in the pH of the vagina, which can cause bacteria to grow more easily and lead to vaginitis during pregnancy. The main manifestations of vaginitis are itching and abnormal leucorrhea, such as pea-like or pasty leucorrhea, grayish yellow or off-white in color, and a fishy odor. If vaginitis occurs in the early trimester, it usually does not require treatment, but can be improved by paying attention to local hygiene, strengthening nutritional support and improving immunity. If the condition is more serious, you can still choose medication in the second trimester at your discretion, and when treating it, you should pay attention to avoid drugs that cause fetal malformations. The incidence of vaginitis is higher during pregnancy, so it is important to pay attention to local cleanliness and hygiene to prevent inflammation after pregnancy.