Brown discharge all the time after menstruation is not necessarily caused by cancer, but may also be due to benign uterine lesions, such as cervical polyps, submucous fibroids of the uterus, or endocrine abnormalities. Brown discharge after menstruation indicates that there has been vaginal bleeding. The site of bleeding may be in the cervix and may be bleeding from the uterine cavity. If the bleeding is from the cervix, the patient may be suffering from cervical polyps, cervical intraepithelial lesions, cervical cancer, etc. All these cervical diseases may lead to brown discharge, which can be clearly diagnosed through gynecological examination, TCT and HPV examination. In case of uterine bleeding, it may be caused by diseases such as submucous fibroids, endometrial polyps, endometrial cancer, endocrine abnormalities, etc. Therefore, tests such as ultrasonography and sex hormone test are needed to clarify the specific cause. After menstruation has been brown discharge need to go to the regular hospital for examination, clear cause, targeted treatment.