If you don’t have your period for three days but have brown discharge, it may be related to pregnancy, endometrial polyps, endometrial hyperplasia and other diseases, so we suggest checking blood HCG, gynecological examination, ultrasound and medication. 1. Pregnancy-related diseases: If there is a delay in menstruation, and have sex without measures, it is recommended to check the blood HCG to see if there is pregnancy, and brown discharge is considered to be caused by pregnancy-related diseases, such as preeclampsia, ectopic pregnancy caused by bleeding, which requires medication and surgical treatment. 2. endometrial disease: if you exclude the case of pregnancy, you can first observe, generally delayed menstruation for about a week is normal, if more than 1 week, you can perform gynecological examination, ultrasound, endometrial hyperplasia compliance with the doctor’s instructions for oral medication, endometrial polyps can be considered hysteroscopic treatment. It is recommended that patients who have brown discharge without menstruation should go to the hospital for a systematic examination to clarify the cause of the disease and target treatment.