Perimenopausal menstruation after clean and brown discharge may be abnormal uterine bleeding, vaginitis or cervical disease and other reasons, need to be analyzed. 1. Abnormal uterine bleeding: perimenopausal women with diminished ovarian function, diminished or imbalanced estrogen and progesterone secretion, and dysfunctional ovarian cyclic effects on the endometrium, irregular vaginal bleeding may occur, possibly manifested as brown discharge. 2. Vaginitis: If a woman’s vagina is infected by pathogens, vaginitis will occur. If the vaginitis is more serious, it will cause local mucosal congestion or even ulceration, which will be manifested as brown discharge. 3. Cervical disease: if women have cervicitis, cervical cancer, then the local tissues are more fragile, there may be a small amount of cervical bleeding after menstruation, manifested as brown discharge. If the woman perimenopausal menstrual period after clean menstruation and brown discharge, may also be other reasons, it is recommended to timely to the hospital, under the guidance of the doctor for standardized treatment.