Schematic diagram of the anatomy of the uterus

The Creator created "women" and gave them the uterus so that they could create the birth of new life. The uterus is a very important organ for women. It shoulders very important responsibilities. It makes girls become women and women become mothers. As women, it is an indispensable organ in our body. Not only women should thank it, but men should thank it as well, because it brings us the birth of new life. However, apart from gynecologists, how many people really understand the uterus? What does it look like?

Many people may feel embarrassed when talking about the female "uterus", or even think that it should not be used as a topic of discussion. In fact, the female uterus, like other organs of the human body, is also worthy of "attention" and is not a taboo.

If you want to understand the "uterus", in fact, you can see it at a glance according to the framework diagram of the uterus. You can find that a woman's uterus is a very miraculous organ, which can create life, allow small lives to grow here, and then take responsibility for sending them out when they are ripe. It is not so much that the mother is outstanding, but rather that the uterus in the mother's body is outstanding.

In general, before giving birth, the uterus of an adult is slightly flattened from front to back and from left to right, forming an inverted pear shape, about 7-9 cm long and 2-3 cm thick. It is divided into three parts: bottom, body and neck.

The cervix is ​​divided into two parts: the inner part of the cervix that enters the vagina and the upper part of the cervix that is above the vagina. The narrow area above the cervix where it connects to the uterine body is called the cervical septum, which is about 1 cm long. During pregnancy, the uterine isthmus gradually flexes and stretches to form the lower uterine segment; in the late pregnancy, it can be extended to 7-11 cm, and the isthmus wall gradually softens. Obstetricians often perform cesarean sections here, which can avoid entering the peritoneal cavity and reduce the chance of infection.

The inner wall of the uterus is divided into two parts: the upper end is in the uterine body, called the uterine body; the lower end is in the cervix, called the cervical canal. The uterine body is an inverted triangle that is flattened front to back and left to right. The upper two sides are connected to the fallopian tubes, and the top continues to the stomach and cervical canal. The cervical canal is fusiform, and the lower hole leads to the vagina, which is called the cervical os. The cervical os of non-pregnant women is often ring-shaped; that of pregnant women is transversely fissured, with the front and edges called the anterior lip and posterior lip respectively. The posterior lip is longer and higher. For adults who are not pregnant, the distance from the cervical opening to the uterine fundus is about 6-7 cm, the uterine body is about 4 cm long, and the widest part is about 2.5-3.5 cm.

The endometrium is divided into three layers. The surface layer is the serosa, which is the visceral layer behind the peritoneum; the middle and high layers are the thick muscle layer, which is composed of smooth muscle; the inner layer is the mucosa, which is the uterine wall, which undergoes regular changes of proliferation and shedding with the physiological cycle.

The uterus is located in the center of the pelvis, between the bladder and the duodenum; it is connected to the vagina below, with bilateral fallopian tubes and the uterus and ovaries on both sides. The uterus maintains its normal position mainly by the support of the cruciate ligaments, pelvic diaphragm and urogenital diaphragm, as well as the expansion of the surrounding connective tissue.

If these positioning devices are weak or damaged, the position of the uterus may be abnormal, resulting in varying degrees of uterine prolapse, with the cervical opening smaller than the plane of the ischial spine. In severe cases, the cervix may slip into the vagina.