The reason why menopause at the age of 50 for half a year and then come back may be normal or abnormal.The reason why menopause at the age of 50 for half a year and then come back mainly includes hormone imbalance in the body, endometriosis, cervical lesions and other reasons. 1. Hormonal imbalance in the body: at the age of 50, the body’s estrogen is declining, a stage of menopause will occur irregular bleeding, need to review the gynecological ultrasound, if there is no abnormality found, then there is no need for treatment, it is a normal phenomenon. 2. Endometrial lesions: endometrial cancer or endometrial polyps are also prone to the symptoms of menopause and then menstruation, which can be determined by ultrasound and then surgically treated. 3. Cervical lesions: cervical lesions, such as cervical cancer, can also cause bleeding locally, which should be further screened by colposcopic pathology to determine the treatment. Half a year after menopause and bleeding is also seen in other causes, need to consult a gynecological ultrasound and cervical examination to see if there is any abnormality, so that you can intervene early to avoid delays in the condition.