The uterus is connected to the vagina and to the fallopian tubes. The shape of the uterus is wide at the top and narrow at the bottom in an inverted triangle, which can be divided into upper and lower parts of different sizes. The upper part is triangular in shape, i.e. the uterus, and the tubes extending outward from the uterine horns on both sides of the uterine floor are the fallopian tubes, which are connected to and also connected with the uterine horns at the inner side of the tubes. The lower part of the uterus is cylindrical or pike-shaped, that is, the cervix, the top of the vagina is the cervix, the vagina and the uterus are connected. It is through the junction of the uterus and the fallopian tubes that the sperm reaches the fallopian tubes, meets the egg and combines to form a fertilized egg. If the uterus and fallopian tubes are not accessible, infertility can result. Endometriosis has been linked to the reflux of menstrual blood, which may lead to endometriosis when menstrual blood enters the pelvis through the fallopian tubes. In endometritis, pathogenic bacteria will erode along the endometrium to the mucosa of the fallopian tube, leading to inflammation of the mucosa of the fallopian tube. Therefore, the female reproductive organs are a whole, when a lesion occurs in one part, it is necessary to treat it early so that the lesion will not attack other organs.