Some women want to get pregnant but cannot wait for a good pregnancy, have disrupted menstruation, menstrual cramps, and even feel painful during conjugal life. After going to the hospital for examination, they realize that endometriosis is the cause of these problems. However, many patients are not clear about what endometriosis is and what causes it. So today we are going to talk to you about endometriosis. When endometrial tissue appears in any part of the body other than the uterus, it is called endometriosis, or endometriosis for short. Ectopic endometrium can invade any part of the body, such as the ovaries, fallopian tubes, uterine ligaments, cervix, vagina, rectum, and bladder, with the ovaries and uterosacral ligaments being the most common. Endometriosis occurs in women of reproductive age, 76% of whom are between 25-45 years old. The cause of endometriosis is not yet clear. It is mostly thought to be caused by ectopic implantation, but also by epithelial differentiation of the corpora cavernosa, genetics, immunity and inflammation. 1.Ectopic implantation When women have menstruation, the endometrium can flow backwards with menstrual blood, enter the pelvis through the fallopian tubes, plant in the ovaries and adjacent pelvic peritoneum, and continue to grow and spread there, forming pelvic endometriosis. The endometrium can also spread to distant areas through lymph and veins and ectopic implantation occurs. So women must pay attention to menstrual hygiene and care, such as avoiding strenuous exercise during menstruation. 2. Genetic factors Endometriosis has a certain degree of family aggregation, and the onset of certain patients may be related to genetics. If there are more than one blood relative suffering from endometriosis, you should pay attention to it, early control is good. 3, immune and inflammatory factors Immune regulation abnormalities play an important role in the occurrence and development of endometriosis; certain inflammatory diseases such as peritonitis are also related to endometriosis. It is recommended that we develop good habits, appropriate exercise, enhance immunity and resistance; pay attention to personal hygiene, the discovery of inflammation should not be taken lightly, to go to the hospital, serious cases need to be actively treated. 4, other factors If multiple abortions or scraping, may cause pressure changes in the uterine cavity, so that the endometrial debris is sucked into the pelvic cavity, resulting in endometriosis. In addition, environmental factors also have a certain influence. If you are not planning to get pregnant, you should take efficient contraceptive measures and avoid uterine surgery as much as possible. Hazards of endometriosis 1. Dysmenorrhea and abnormal menstruation Dysmenorrhea is the most typical symptom of endometriosis, which can occur before, during and after menstruation. In severe cases, the pain is unbearable and even the application of painkillers has no effect until the pain is relieved after the menstruation is completely clean; it can also cause shortening of menstrual cycle, excessive menstrual flow and prolonged menstruation. If the ovarian function is affected, it can lead to abnormal ovulation. 2. Infertility Patients with endometriosis are often associated with infertility. This is because endometriosis can lead to pelvic masses and adhesions, which in turn can cause blockage of the fallopian tubes, abnormal follicle development, or affect ovulation due to ovarian lesions. In addition to infertility, the probability of ectopic pregnancy is also increased compared to normal people. 3. Painful intercourse Endometriosis in the rectal fossa of the uterus and vaginal rectal compartment can cause painful intercourse (deep tenderness), which is most pronounced before menstruation. 4.Other endometriosis in any part of the body can present with periodic pain, bleeding and lumps locally, and corresponding symptoms. For example, endoheterosis of the bladder often presents with frequent and painful urination during menstruation.