There is dark brown discharge on 10 days of menstruation, blood in the uterine cavity and blood in the vagina that is not completely drained is considered stale blood. It can be temporarily observed. If bright red blood appears again, it is considered to be irregular vaginal bleeding with heavy bleeding, which requires prompt medical consultation and, if necessary, scraping treatment or endometrium-related pathological examination to avoid endometrial lesions. During the observation period, you need to pay attention to any abdominal pain and odor of vaginal discharge to prevent reproductive system infection, avoid contact with too cold food to prevent prolonged periods, pay attention to abdominal warmth to relieve menstrual discomfort, and drink more warm water and brown sugar water to promote local blood circulation and improve symptoms.