Miscarriage refers to the artificial or non-artificial termination of pregnancy, divided into natural abortion and abortion, abortion is divided into surgical abortion and drug abortion, in the folklore there is a “small moon” saying, although there is no scientific basis, but also shows that abortion has a certain impact on the body, why some people have abortion after abortion can still be normal pregnancy, while some people just because of a miscarriage led to cavity adhesion or even secondary infertility. Why do some people get pregnant normally after one miscarriage, while others suffer from uterine adhesions or even secondary infertility just because of one miscarriage? How does miscarriage affect the endometrium and how long does it take for the endometrium to recover after miscarriage? First of all, we need to understand that the endometrium is divided into two layers, the functional layer and the basal layer. The basal layer is like an endometrial production factory that continuously produces the functional layer, which is shed periodically during the menstrual cycle to become menstrual, or becomes the meconium during pregnancy to give nutritional support to the fetus, as shown in the figure below. In the other case, the egg ages alone, the hormones decline and the lining without hormonal support rapidly sheds to form menstruation. So whether the endometrium recovers or not depends entirely on whether the endometrial basal layer is intact and whether there is normal ovulation. Generally speaking, as soon as normal menstruation resumes after miscarriage, the amount of menstruation is basically the same as before indicating that the endometrium has recovered, and studies have found that a pathological examination of the endometrium as early as the 9th day after miscarriage can reveal that it has returned to normal. However, abortion itself is a kind of damage to the endometrium, and the endometrium will form a trauma after abortion, so it is easy to cause endometrial inflammation and pelvic inflammatory disease, etc. Natural abortion and medication abortion without clearing the uterus are less damaging to the endometrium, while surgical abortion uses mechanical force to suck or scrape out the pregnancy from the uterine cavity, if the operation is more violent or more times, it is very likely to damage the basal layer of the endometrium, which will easily cause This may cause menstrual disorders, uterine adhesions or even secondary infertility. If menstrual pain, reduced menstrual flow or even amenorrhea occurs after abortion, you should consult a regular hospital in time to avoid delaying treatment. After miscarriage, doctors may tell people that it is recommended to plan pregnancy after 3-6 months of resumption of menstruation because, in addition to the recovery of the endometrium, most of them also take into account the emotional factors of the patient. In addition, each individual has a different ability to proliferate the basal lining of the endometrium, and this difference leads to differences in whether and how long the endometrium can recover after an abortion. The endometrium is fragile and its ability to withstand damage cannot be predicted in advance, so it is important to be pregnant and cherish it.