The yellowish-green discharge from the girl’s underwear is mostly considered to be caused by vulvovaginitis, vulvar adhesions, vaginal foreign bodies, etc., which need to be treated with medication and surgery, so as to improve the symptoms of the disease. 1. Drug treatment: for bacterial infection, parents should strictly follow the doctor’s instructions, give the child oral amoxicillin, metronidazole and other antibiotics. If it is due to Candida infection, can be applied locally miconazole nitrate cream, mycotoxin suspension and so on. If it is mycoplasma, chlamydia infection, need oral erythromycin, azithromycin and other antibiotics. 2. Surgical treatment: If the child is not effective after non-surgical treatment, and the vulvar adhesion or vaginal foreign body is considered, surgical treatment is needed, such as separation of labia minora, foreign body removal surgery. When girls have yellowish-green secretions in their underwear, parents need to bring their children to the regular hospital to find out the cause of the disease and cooperate with the doctor to take treatment measures.