Patients with endometriosis have probably heard their doctors say that pregnancy is the best treatment. A patient once asked me, since pregnancy is the best treatment, if I get pregnant and then have an abortion, will I be cured of this disease? Of course not. This is a misinterpretation of the phrase “pregnancy is the best treatment” by the patient. Pregnancy and endo treatment are a contradiction. It is true that pregnancy is a topic that cannot be avoided in the treatment of endometriosis. Endometriosis causes infertility; pregnancy is the best treatment for endometriosis; and pregnancy promotion is the best treatment for endometriosis. Let me explain this to you below. I. Why does endometriosis cause infertility? Endometriosis affects pregnancy from all aspects of ovulation, fertilization, and fertilized egg implantation. Ovulation link: In some patients, follicular luteinization occurs after folliculogenesis to the time when it is time to ovulate, and the follicle is not eventually expelled. However, the basal body temperature test and ovulation test are the same as normal ovulation. The hormonal secretion of the ovaries is also the same as normal ovulation, and the maturation of the ovaries can be seen under ultrasound. The ovaries are maturing on ultrasound, but they are atrophied and luteinized in situ. Ovarian transport: In patients with endometriosis, pelvic adhesions and tubal adhesions or even incompetence can occur. The fallopian tubes are malfunctioning and cannot transport the sperm to the intended site to meet the egg. Fertilization link: In patients with endometriosis, especially those with dysmenorrhea, the internal environment of the abdominal cavity is poor and there is a large amount of inflammatory factors present, which are harmful to sperm and fertilized eggs and can engulf sperm and fertilized eggs. The implantation link: there is now a theory called in situ endo-determinism. The main reason why a person gets endometriosis is that there is a problem with the in situ endometrium itself, and an abnormality in the in situ endometrium will affect the fertilized egg’s implantation. All of the above mentioned links may affect pregnancy, and therefore, one of the clinical manifestations of endometriosis is infertility. Why pregnancy can treat endometriosis? Why is pregnancy the best treatment? Experts agree that endometriosis is a hormone-dependent disease, an organ-dependent disease. Dependent on what hormone? — estrogen. Dependent on what organ? — the ovaries. This is why the disease rarely occurs after menopause and before puberty, and why radical surgery must be performed to remove both ovaries. This is because the disease occurs in women of reproductive age, who have a strong demand to preserve their reproductive function and the endocrine function of the ovaries, and therefore cannot have radical surgery in every one of them. Then our doctors have to find some conservative treatment options. The conservative treatment options, no matter what kind of drugs: progesterone, Danazol, Mifepristone, Progesterone, Daphylline, Norelide, Suppressant, etc. have only one goal – to suppress the ovaries, so that they do not produce estrogen and do not ovulate. There is another way to stop the ovaries from producing estrogen and ovulation: pregnancy. During pregnancy, the ovaries are at rest and the body receives a lot of progesterone from the corpus luteum and placenta. During breastfeeding, the ovaries are also at rest. Any medication has side effects, but pregnancy is a physiological process and therefore arguably one of the best treatments for endometriosis. After our doctors have operated on young patients with chocolate cysts, they often tell them not to use contraception when they return and to get pregnant as soon as possible. More severe patients are also given short-term medication and then told to think about having children as soon as possible. Third, why is promoting pregnancy the best treatment? Patients with endometriosis are again often infertility patients. Although pregnancy can cure her disease and prevent and delay recurrence. But what if he cannot get pregnant? After our surgical and pharmacological treatment she cannot get pregnant either, it is time to actively promote pregnancy, for example: artificial insemination, in vitro fertilization. These methods, not only solve the problem of this family to have a baby, but also treat the female partner’s endo. Having said that, you may understand why this previous patient said how ridiculous it is to have an abortion to treat endometriosis. Pregnancy can treat endo because it takes long enough for pregnancy to suppress the ovaries. Early pregnancy followed by abortion does not achieve ovarian suppression, but may aggravate or induce endometriosis due to the surgical operations of abortion and curettage. Besides, if you are an infertility patient, do you want to go for artificial insemination or IVF to get pregnant? That is too costly. Fourth, is there any side effect of treating endometriosis by pregnancy? Surgery and medication have risks and side effects, but there are no by-products. And this method is to give birth to a newborn baby. So you first have to have the purpose and requirement of having a baby, in line with the national policy of family planning. We can’t get pregnant just to cure a disease. Another patient of mine, who had already given birth and was almost 40 years old, and had been suffering from dysmenorrhea of endometriosis for more than 10 years, suddenly said one day on a whim: Since pregnancy is the cure, can’t I go and get pregnant? My answer was, have you thought about it? Are you in desperate need of a new family member. If you decide to use this method, all other medications should be stopped. Once you can’t get pregnant yourself, are you actively promoting pregnancy?