Postmenopausal endometrium 0.7cm needs to be checked. Postmenopausal endometrium more than 0.3cm needs to be examined, which may be endometritis, endometrial polyp and endometrial cancer. 1. Endometritis: Thickening of endometrium in postmenopausal women can be seen in endometritis, which is caused by long-term inflammatory stimulation. Clinical manifestations mainly include lower abdominal pain, fever, leukorrhea increase and so on. 2. Endometrial polyp: endometrial polyp-like hyperplasia is also manifested as endometrial thickening, which has the possibility of malignant transformation and mainly manifests as postmenopausal vaginal bleeding. 3. Endometrial cancer: The main symptoms of endometrial cancer in early stage are thickening of endometrium, vaginal bleeding, and a small amount of plasma or bloody secretion. In the late stage, local infection and necrosis will occur, and foul-smelling pus and blood-like liquid can be discharged. Endometrial thickening should go to the hospital for relevant examination to make a clear diagnosis and follow the doctor’s instructions for active treatment.