The normal position of the uterus is within the female pelvis. When a prolapse occurs, the uterus gradually descends downwards. In cases of mild to moderate uterine prolapse, since the majority of the uterus remains inside the vagina, there is no particular need for special attention during menstruation—regular care will suffice. In severe cases of uterine prolapse, the uterus might completely protrude outside the vaginal opening. In such circumstances, extra care may be needed during menstruation to prevent menstrual blood from staining undergarments. You might need to use larger sanitary pads; other than that, there is nothing particularly different that needs attention. Additionally, remember to change sanitary pads and underwear regularly to avoid potential infections.