Ectopic pregnancy, commonly known as ectopic pregnancy, as the name suggests, refers to the fertilized egg in the uterine cavity outside the part of the bed, with tubal pregnancy is the most common, accounting for about 90 ~ 95%, the uterus and the pelvic and abdominal cavities of the other locations such as ovaries, cervix, uterine horn, broad ligament, the greater omentum, mesentery, peritoneum, the spleen and so on are also likely to occur ectopic pregnancy. The most common cause of ectopic pregnancy is tubal factor, and after tubal pregnancy, no matter conservative treatment or surgical treatment, it may affect the patency of the tubes and lead to pelvic adhesions, therefore, the history of ectopic pregnancy is a high-risk factor for reoccurring ectopic pregnancy, there are statistics that patients with a history of ectopic pregnancy, the risk of reoccurring ectopic pregnancy rises by 7-13 times, the chance that the next pregnancy will be intrauterine pregnancy is 50~80%, and the chance of having another tubal pregnancy is 10~25%, which may even lead to secondary infertility. The common cause of tubal pregnancy is due to pelvic inflammation, especially tubal inflammation or peritubal inflammation, or endometriosis and other diseases, resulting in tubal adhesion and obstruction, so before preparing for pregnancy, first of all, you need to carry out a systematic gynecological examination and systemic checkups, treatment of the primary disease that causes tubal adhesion and obstruction, which will reduce the probability of reoccurrence of ectopic pregnancy. Secondly, after ectopic pregnancy, according to the different treatments, the preparation for preparing for pregnancy again is also different: 1, surgical removal of fallopian tubes, such as both fallopian tubes have been removed, it is recommended to directly consult the fertility center, IVF. If one side of the fallopian tube has been removed, it is recommended to have a tubal imaging to check the patency of the fallopian tube, if the retained side of the fallopian tube is patulous and functioning well, it can be monitored for ovulation and guided to have coitus, if the retained side of the fallopian tube is blocked, it is also recommended to have IVF technology to help pregnancy. However, in vitro fertilization cannot completely avoid the occurrence of ectopic pregnancy again. 2.After conservative treatment or tubal incision and embryo extraction, the patient retains both fallopian tubes, and there is a 50~80% chance of intrauterine pregnancy, so the patient can try to conceive positively, but due to the original lesion of the fallopian tube or post-surgical injury, which may lead to tubal obstruction or dysfunction, it is recommended to carry out a tubal imaging test to clarify tubal patency and then ovulation monitoring, and guidance for coitus. It should be reminded that due to the high risk of repeat ectopic pregnancy, patients with a history of ectopic pregnancy need to closely monitor the blood HCG and progesterone values, timely ultrasound examination, and timely medical attention when there is abdominal pain, vaginal bleeding and other discomforts.