Nowadays, many women will have bleeding during non-menstrual period, which is likely to be triggered by abnormalities in the endometrium, and can seriously lead to irregular vaginal bleeding, blood loss anemia, endometrial polyps, etc. So what are the signs of endometrial thickening cancer? 1.Under normal circumstances, endometrial thickening will occur before or after menstruation, when the hormone level in women’s body is disturbed and the ovaries are effectively stimulated, endometrial thickening will gradually occur, while the abnormal endometrial thickening is probably caused by inflammatory hyperplasia or polyps. 2. Before cancer, abnormal endometrial thickening may manifest as irregular vaginal bleeding during non-menstrual period, which may last for half a month or more than 20 days, or even more than a month. Some women experience delayed periods, heavy menstrual bleeding, clots and prolonged bleeding. This symptom, many female patients, will treat it as a symptom with menopause, very easy to ignore. 3. For female patients, some benign endometrial hyperplasia can be treated symptomatically in regular hospitals. However, if a very complicated hyperplasia phenomenon occurs continuously, it should be taken seriously and may evolve into endometrial cancer through several years of changes. When irregular vaginal bleeding occurs, women should pay high attention to it and improve the related examination, and cooperate with doctors for early treatment and medication.