At 33 weeks of pregnancy, if the discharge is like pus and snot and is not accompanied by itching and other uncomfortable symptoms, it is considered to be normal, if accompanied by other uncomfortable symptoms, it is considered to be abnormal. In late pregnancy, due to the increase of estrogen level and the shedding of cervical mucus plugs, the vaginal secretion will increase, that is, the leukorrhea will increase. If the discharge is like thick nasal mucus and there are no other uncomfortable symptoms, this kind of secretion is considered to be normal, and there is no need for special treatment. If the discharge like thick snot, accompanied by vaginal itching, leukorrhea odor, leukorrhea color yellow, then consider the possibility of vaginitis or cervicitis, it is recommended to go to the regular hospital routine leukorrhea test, to clarify the cause of the disease, symptomatic treatment. Usually pay attention to personal hygiene, wash the vulva with warm water every day, change underwear frequently, wear loose and breathable cotton underwear, keep the vulva clean and dry.