Among the female reproductive organs, the fallopian tubes and the ovaries are collectively known as the adnexa. The fallopian tubes and ovaries are both left and right, so they are called double annexes. The fallopian tube is a long, thin, curved, muscular tube that is anatomically divided into four parts: the mesenchyme, the isthmus, the jugular, and the funnel, and it is the tube that carries the oocytes into the uterus. The ovaries are female gonads that exist in pairs. Their main functions are to produce and expel oocytes, secrete sex hormones, and promote the development and maintenance of female sexual characteristics. In women of childbearing age, the right and left ovaries normally discharge an egg alternately every month. The fallopian tubes and ovaries are part of the female internal genitalia, and any lesion of either organ will cause different diseases, such as tubal obstruction due to pelvic inflammation, endometriosis, infection, congenital anatomical abnormalities, or abnormal development of the ovaries or ovarian cysts, all of which may lead to infertility. It is necessary to pay special attention to the fact that ovarian tumors are also one of the common tumors in females, therefore, regular checkups of the uterus Therefore, regular checkups of the uterus and both adnexa are particularly important for women.