Leukorrhea in pregnant women is normally milky white or colorless. Under normal circumstances, the leukorrhea of pregnant women is white, thin in quality, small in quantity and without odor, just like that of normal women. If there is yellowish leukorrhea in white color, accompanied by vulvar and vaginal itching, it may be related to gynecological diseases such as trichomoniasis or bacterial vaginitis. If there is dark brown leukorrhea, it may be endometrial bleeding or preeclampsia, etc., and you need to go to the hospital in time. Pregnant women should change their underwear frequently, pay attention to vulvar hygiene, keep the vulva clean and dry, and actively control sugar if they have abnormal blood sugar. If there is any abnormality in the leukorrhea, please consult a doctor in time to avoid miscarriage and other negative consequences.