The most likely cause of white scum inside the uterus is infection with vaginitis, which needs to be diagnosed by checking the routine leukorrhea, the type of vaginitis is dominated by mycosis vaginalis, and if the routine leukorrhea suggests that the molds are positive or the spores are positive, the diagnosis of mycosis vaginalis can be confirmed. Treatment options can choose oral fluconazole 150mg, take 1 time can be, serious patients can be every 3 days and then oral 1 time, local medicine can use nitrofurantoin vaginal plug or kenetin. Topical washing can use benzalkonium chloride, if the vulva is very itchy, you can use clotrimazole ointment applied to the local at the same time.