There are several reasons for the yellowing of leucorrhea after pregnancy: First, it may be due to the changes in women’s body during pregnancy, the vaginal shedding cells and secretions increase, so there will be a slight yellowing of the leucorrhea, basically you do not need to carry out treatment, usually pay more attention to personal hygiene. Secondly, the yellowing of leucorrhea may be caused by vaginitis, such as trichomonas vaginitis, mycotic vaginitis, bacterial vaginosis and other diseases, which can cause yellowing of leucorrhea and affect the pregnant woman’s body with symptoms such as itching, pain and odor in the pubic area. If there are no uncomfortable symptoms, treatment is not necessary to avoid affecting the health of the fetus.