Generally, the test strips we use can only qualitatively detect urinary HCG, which is what we usually call pregnancy. In other words, it detects that the egg and sperm met to form a fertilized egg and secreted HCG (human chorionic gonadotropin), but the amount of HCG secreted, whether or not the fertilized egg was laid and where it was laid are not known, so ectopic pregnancy cannot be detected by test strips. Ectopic pregnancy, medically known as ectopic pregnancy, is a pregnancy in which the fertilized egg is laid outside the body cavity of the uterus. When miscarriage or rupture occurs, the diagnosis is not difficult; however, in the early stages of ectopic pregnancy, the diagnosis is mainly based on auxiliary tests, such as blood HCG measurement and vaginal ultrasound. The HCG level in ectopic pregnancy is lower than that of normal intrauterine pregnancy, but there is no certain standard for the specific HCG value. In fact, it is very difficult to determine ectopic pregnancy based on a particular blood HCG value, but in general, we need to continuously and dynamically monitor the patient’s blood HCG value. If the doubling time is less than 1.4 days, ectopic pregnancy is basically not considered.) Clinically, the diagnosis of ectopic pregnancy is usually made by combining the blood HCG value with vaginal ultrasound. When the blood HCG value is >2000iu/l and the intrauterine fetal sac is not detected by vaginal ultrasound, the diagnosis of ectopic pregnancy is highly considered. In conclusion, ectopic pregnancy cannot be detected by test paper. When a pregnant woman has vaginal bleeding or abdominal pain after menopause, she should seek medical consultation in time because the condition of ectopic pregnancy develops rapidly and can be life-threatening in serious cases.