If your panties are wet and yellow after pregnancy, first of all, you should consider whether your pelvic floor is dysfunctional due to pregnancy, which may lead to urine leakage. Secondly, the hormonal changes in the body after pregnancy may lead to an increase in secretions and changes in the internal environment of the vagina, making it easier for bacteria to breed and cause vaginitis. Patients are advised to go to the hospital in time for a secretion check to exclude the presence of other gynecological inflammatory diseases or factors affecting fetal development.1. pelvic floor dysfunction: if the leakage is caused by abnormal pelvic floor function, anal lifting training can be performed under the guidance of a doctor, such as keeping the legs clamped and mobilizing the buttock muscles to squeeze the anus, which can improve this condition to the greatest extent.2. vaginitis: if the leakage is due to vaginitis If the condition is caused by vaginitis, you can clean your vulva with warm water and keep it clean and dry, usually under the guidance of a doctor in early pregnancy. If vaginitis occurs in the middle or late pregnancy, in order to avoid premature rupture of membranes or damage to the soft birth canal during delivery due to vaginal inflammation and edema of the vaginal wall, causing hemorrhage. The vaginal infection can be treated with medication under the guidance of a doctor, such as nifurtimox vaginal soft capsule, bitter ginseng gel and red nucleus feminine cleansing lotion. Unauthorized use of medication is prohibited to avoid any effect on the fetus. In addition, patients are advised to observe the color change of the underwear secretions, change underwear regularly, choose cotton and breathable underwear as much as possible, and pay attention to the cleanliness and dryness of the lower body. Regular maternity checkups should be conducted to keep an eye on the development of the fetus and also to pay attention to changes in oneself. If there is any discomfort, it is recommended to go to the hospital in time for consultation and treatment.