The presence of brown discharge at the vulva of women: 1. may be in the middle of the menstrual cycle, due to ovulation of the ovaries, a small part of the endometrium is exfoliated, which will lead to the occurrence of brown discharge. 2. when women are one or two days before the onset of menstruation, due to the decline in hormone levels, there will also be endometrial exfoliation and abnormal discharge. 3. when women have cervical inflammation, such as cervical erosion, cervical The company’s main business is to provide a wide range of products and services to the market. Therefore, when a woman has brown discharge from the vulva, she should promptly go to the hospital for gynecological ultrasound and examination, and take treatment according to the different causes.