Delayed menstruation for 7 days with a little brown discharge may be caused by ovulation bleeding, endocrine disorders, gynecological diseases and so on. 1. Ovulation bleeding: when the patient has delayed menstruation for 7 days with a little brown discharge, it may be caused by delayed ovulation, and ovulation uterine bleeding will occur, which is manifested by brown discharge. 2. Endocrine disorders: when women stay up late for a long time and live a stressful life, it is easy to lead to abnormal hormone levels in the body, causing blood in the vagina can not be discharged smoothly, resulting in delayed menstruation with a little bit of brown discharge. 3. Gynecological diseases: when women suffer from endometritis, cervical polyps and other diseases, it is easy to produce stimulation of the uterine lining, delayed menstruation, a little brown discharge. Women who have delayed menstruation for 7 days with a little brown discharge should go to the hospital immediately, after clarifying the cause, follow the doctor’s instructions to avoid delaying the condition.