Uterine fibroids are the most common benign tumors of the female reproductive tract. The uterus is one of the internal reproductive organs of women and is located deep in the pelvis in the lower abdomen. The uterus is shaped like a duck pear placed upside down and is normally a little smaller than a woman’s own fist. Uterine fibroids are benign tumors that occur in the uterus, mostly in women between the ages of 30 and 50 (but also in younger women), and are also known as “fibroids”, “fibroids”, or “smooth fibroids”. Smooth fibroids”, often referred to as uterine fibroids. According to some data, one out of every four to five women over the age of 35 has fibroids, but some of them are undiagnosed because their symptoms are not obvious. The cause of uterine fibroids is not fully understood, but it is generally believed to be related to elevated or disturbed levels of estrogen in a woman’s body. It is now believed that the constant stimulation of high levels of estrogen is the primary cause of fibroids. There is a lot of evidence to support this view: fibroids rarely occur in prepubertal girls due to low estrogen levels in the body; after menopause, estrogen decreases significantly and pre-existing fibroids will stop growing and even shrink; after women have their ovaries removed for various reasons, fibroids will also shrink. However, if women who have had their ovaries removed use estrogen, the fibroids that have shrunk can return to their original size and even grow new ones. Can fibroids be inherited? It is now believed that many diseases are hereditary or have a genetic susceptibility. When one of twin identical sisters (two embryos formed by the division of a fertilized egg during development) has fibroids, the other has a high rate of fibroids. In addition, a mother with fibroids has a higher chance of having a daughter with fibroids. Therefore, it can be said that fibroids have a tendency to be inherited, although the pattern of inheritance is not known. Uterine fibroids can grow as a single fibroid (solitary fibroids) or as many as a dozen, dozens, or even hundreds (multiple fibroids). However, regardless of the size of the fibroids and whether they are solitary or multiple, they all initially originate from the uterine muscle wall and later have different names as they advance and grow in different directions. Let us imagine the uterus as a house, where the uterine cavity is equivalent to the room and the myometrium is equivalent to the wall. The inner surface of the wall has a membrane called the endometrium (also called mucosa) that grows and sheds under the precise regulation of ovarian hormones to form menstruation. The outer surface of the wall also has a membrane called the plasma membrane. If a large portion or all of the fibroid remains in the wall (myometrium), it is called intermyometrial fibroid and is the most common type of uterine fibroid. If the fibroid develops toward the outer wall (plasma surface) and most of it protrudes from the surface of the uterus, or even only a layer of plasma membrane covers it, it is called subplasma fibroid; if the fibroid develops toward the inner wall (endometrium) and most of it protrudes from the uterine cavity, or even only a layer of mucous membrane covers it, it is called submucosal fibroid. The clinical presentation of fibroids varies greatly from site to site. Most fibroids grow in the upper uterine body, but some grow in the lower cervical area, called cervical fibroids; in addition, fibroids originating from within the myometrium can also grow into the broad ligament on both sides of the uterus, forming broad ligament fibroids. These two types of fibroids are in a special location and have a close relationship with the ureter, which makes them prone to side injuries during surgery, and doctors will pay special attention to them.