Endometrial polyps may lead to thickening of the endometrium in some cases, mainly because the endometrium will undergo polypoid changes, so the endometrium will be thickened. It is recommended to do endometrial polyp removal surgery at the same time to do diagnostic scraping, respectively, polyps and scraped out endometrium sent to the pathology, clinical final diagnosis based on pathological diagnosis, if not to do diagnostic scraping may lead to missed diagnosis. Because endometrial thickening can also be caused by endometrial inflammation, endometrial cancer, endometrial polyp-like hyperplasia, or atypical hyperplasia, etc., which may lead to endometrial thickening, so it is important to pay attention to this situation. If diagnostic scraping is done, the clinical treatment will be based on the pathologic diagnosis, so that the diagnosis will not be missed.