“Doctor, I had a painless abortion half a year ago because of an unplanned pregnancy, and now my menstrual flow is particularly low. ……” Patients who come to the gynecology clinic for similar reasons are common, and the ensuing infertility problems make many patients even more fearful. There are many reasons for low menstrual flow, the most common being endocrine factors, or damage to the uterine lining caused by abortion or scraping, or even adhesions in the uterine cavity. It is possible that many women do not know why they have low menstrual flow, not to mention that the ensuing injuries may pose a threat to their fertility problems. I hope that this article will enable women to raise their health awareness and prevent the problem before it occurs. In recent years, painless abortion is highly respected by young female friends, the popularity of intravenous anesthesia in abortion, so that the operation is painless, and even more encourage young women’s courage, for the treatment of unplanned pregnancies are more casual, the author in the clinical work, I found that many female friends do not recognize the hazards of abortion, and then repeated abortion, because of low menstrual flow to the hospital for medical treatment of the patient Through further examination, it was diagnosed as uterine cavity adhesion. Uterine adhesion is common after abortion or curettage due to excessive negative pressure during suction or excessive scratching of the uterine cavity for fear of incomplete abortion, which damages the basal layer of the endometrium and leads to postoperative uterine adhesion. Different parts of the uterine cavity adhesion, the symptoms are not exactly the same, except for endometrial tuberculosis caused by the uterine cavity adhesion, the patients have a history of abortion or scraping and other uterine operations, resulting in cervical adhesion can be amenorrhea with cyclic abdominal pain, the uterine cavity part of the adhesion of patients can be manifested as a decrease in the amount of menstruation, or even amenorrhea. Uterine adhesions cause narrowing of the uterine cavity and damage to the endothelium, which affects the embryo’s implantation and development, and may lead to secondary infertility, cessation of embryo development, or spontaneous abortion. Patients who come to the hospital because of menorrhagia or amenorrhea should first undergo an endocrine examination, and after exclusion of endocrine disorders, the presence of uterine adhesions can be clarified through hysteroscopy. After a clear diagnosis, the most minimally invasive and effective treatment for uterine adhesions is hysteroscopic surgery, which separates the uterine adhesions and restores the normal shape of the uterine cavity. After the surgery, an individualized plan is formulated to assist with medication to help repair the lining and prevent the recurrence of uterine adhesions. Hysteroscopy can clarify whether the cause of low menstrual flow is caused by uterine adhesions, and hysteroscopic surgery can help patients restore the normal shape of the uterine cavity, but all of these treatments are only remedial measures, because the uterine adhesions affect the fertility of the patient can only pay for their own mistakes, the hysteroscopist acts as a “savior” role to redeem and help those who have made mistakes. The role of the hysteroscopist is to be the “savior”, to redeem, to help those who have made mistakes, and to give them a chance to become mothers. I hope that the majority of female friends value their own bodies, careful choice of termination of pregnancy, careful choice of painless abortion, but also hope that the majority of doctors treat each patient with unplanned pregnancy carefully, mercifully, to avoid excessive scraping caused by damage to the endothelial lining, fertile soil becomes barren easily, so that the desert becomes an oasis is not easy to talk about!