In the case of vaginal bleeding 40 days after menopause, if a woman with irregular menstruation or delayed ovulation has vaginal bleeding 40 days after intercourse, there is a possibility of bleeding from implantation. However, if it is a woman with normal menstruation, it is unlikely that it is bleeding from implantation, it may be a manifestation of pre-eclampsia or ectopic pregnancy, etc., which needs to be judged according to the specific symptoms of the pregnant woman. 1, menstrual flow: it may be a manifestation of women’s menstrual flow, due to stress, staying up late or other reasons leading to menstrual disorders, and the situation of menstrual flow again for 40 days after menopause, the corresponding examination can be done to exclude pregnancy and other pathological possibilities. 2 The pregnancy can be detected by the following tests: 2. Pregnancy, congenital sac implantation: implantation usually occurs 6-7 days after intercourse, at the latest 10 days. Therefore, bleeding from implantation 40 days after menopause is only possible in women with irregular menstruation or women with delayed ovulation; 3. Pre-eclampsia: bleeding is small, often dark red or bloody leucorrhea, accompanied by mild lower abdominal pain or back pain. In case of progesterone deficiency, progesterone supplementation should be given and the underlying disease should be actively controlled for fetal preservation treatment. If the vaginal bleeding stops after treatment and the ultrasound indicates that the embryo is alive, the pregnancy can be continued. If the clinical symptoms worsen and the ultrasound indicates embryonic abortion, it indicates that miscarriage is inevitable and the pregnancy should be terminated in time according to medical advice. 4. ectopic pregnancy: the typical symptoms are menopause, abdominal pain and vaginal bleeding, which may be accompanied by the discharge of meconium fragments. Patients need to be immediately admitted to the hospital for examination, and once diagnosed, surgical treatment should be given according to medical advice to terminate the pregnancy in time to avoid aggravation of symptoms, causing hemorrhage and even hemorrhagic shock, which may endanger life. If a woman has vaginal bleeding on the 40th day of menopause, she should monitor her blood HCG and progesterone, and if necessary, perform ultrasonography to find out whether she is pregnant and how the embryo is developing.