If the endometrium thickens and becomes cancerous after menopause, the earliest symptom is irregular vaginal bleeding. Therefore, once a postmenopausal woman has irregular vaginal bleeding, she should pay high attention to it and have a gynecological examination to find out if there are any abnormalities in the vulva and vagina. In addition, gynecological examination and ultrasound should be done. If there is abnormal thickening of the endometrium, uneven echogenicity or abnormal masses in the endometrium found by ultrasound, it is recommended to do diagnostic scraping as soon as possible, and the diagnosis can only be confirmed by diagnostic scraping and sending the scraped out tissues for pathological examination. Once the diagnosis of endometrial cancer is confirmed, it is recommended to choose surgery for appropriate treatment as soon as possible.