Both intrauterine and ectopic pregnancies are clinically associated with a history of menopause. Ectopic pregnancy can occur after menopause with a small amount of vaginal bleeding with lower abdominal distension or vague pain, at which time further ultrasound examination needs to be completed to check the location of the gestational sac and fetal heart to determine if the pregnancy is intrauterine or ectopic. A blood test for HCG doubling at 48 hours is also needed. The common methods of identification are as follows: 1. ultrasound examination: the location of the gestational sac and fetal heart can be observed by ultrasound in early pregnancy, if the gestational sac is inside the uterine cavity, it is an intrauterine pregnancy, if the gestational sac is planted in a location other than the uterine cavity, it is an ectopic pregnancy; 2. blood HCG test: the value of HCG can be checked by blood test, if the value of HCG doubles again every 48h, it is more likely to be an intrauterine pregnancy. If the HCG value does not increase exponentially and even has a tendency to decrease, the pregnancy may be ectopic; 3. progesterone test: if the progesterone value is low, between 10-25ng/ml, there is a possibility of ectopic pregnancy; if the progesterone value is greater than 25ng/ml, the possibility of ectopic pregnancy is smaller; 4. puncture test: if ectopic pregnancy ruptures, there will often be intra-abdominal bleeding, and posterior vaginal vault puncture can accurately Identification of intrauterine pregnancy and ectopic pregnancy. Therefore, after pregnancy, we should actively improve the relevant examinations and deal with abnormalities as early as possible.