The yellow discharge that always appears in the underwear in early pregnancy is due to a decrease in resistance, or due to the fact that estrogen and progesterone will rise significantly during pregnancy, which will result in more vaginal discharge, and there may even be inflammation. In this case, if there are uncomfortable symptoms, such as itching, redness, swelling, odor, it is recommended to go to the hospital registered obstetrics for routine leukorrhea test, to see which kind of vaginitis belongs to the vagina, to be treated with vaginal plugs. It’s not that you can’t absolutely use medication during pregnancy, it’s just that any medication that doesn’t have an effect on the fetus is fine. If there is no uncomfortable situation, pay attention to good personal hygiene as much as possible, wash the vulva with warm boiled water every day, underwear should be boiling water, sun exposure, play the role of disinfection and sterilization, can be observed for 5-7 days. If there is no yellow discharge for 5-7 days, it means that it is normal, and regular follow-up and observation can be done.