A normal endometrium of 8-12mm is conducive to the fertilization of the egg. A thick or thin endometrium can affect fertilization. An abnormal thickening of the endometrium of 17mm is considered to be caused by endocrine disorders. In addition, it may be an abnormal endometrial hyperplasia, which may be caused by polycystic ovaries, endometrial tumors, etc. The thick endometrium will affect ovulation and follicle development. You can go to the hospital to check the hormone six, and it is also recommended to scrape the uterus for pathological examination. Polycystic ovaries need to be treated with Daing-35 under the guidance of a doctor, and ovulation-promoting drugs need to be used. Simple endometrial hyperplasia needs to be treated by curettage and normalization of the endometrium before normal pregnancy can be achieved. If endometrial tumor needs to be treated by surgery, post-operative treatment with chemotherapy drugs is also needed to regulate, etc.