Thickness of the uterine lining needs to be selected according to the specific situation. If it is physiological hyperplasia, generally no treatment is needed; if it is pathologic hyperplasia, the cause of the disease should be found before treatment. 1. Physiological hyperplasia: During menstruation, the endometrium will proliferate and secrete and shed periodically, and will gradually thicken when it is in physiological period. Generally, no special treatment is needed, and it will be relieved after menstruation. 2. Pathological hyperplasia: (1) Endometrial hyperplasia: it can be treated with hormonal drugs such as oral dextroprogesterone; when repeated endometrial thickening or malignant change of endometrium is suspected, it is necessary to carry out curettage or hysteroscopy and take the endometrium to do pathologic examination. (2) Endometrial polyps: if the size of the polyp is small and there is no obvious symptom, it can be followed up for observation; if the size of the polyp is large, symptomatic or has the possibility of cancer, hysteroscopic polypectomy is needed. After operation, levonorgestrel and other drugs should be taken to reduce the recurrence of polyps. (3) Endometrial cancer: corresponding treatment methods should be adopted according to the stage of cancer, and surgery, drugs, radiotherapy, chemotherapy, targeted therapy and other methods should be used jointly. It can be seen that if endometrial thickness is found, it is recommended to seek medical treatment in time, complete relevant examinations, and clarify the cause of the disease under the guidance of professional doctors for targeted treatment. The use of the above drugs should be strictly in accordance with medical advice.