Ectopic pregnancy is difficult to be determined by blood test alone, and it usually requires the combination of clinical symptoms and ultrasound examination. Ectopic pregnancy refers to the fact that the fertilized egg does not settle in the uterine cavity, but settles and develops in the abdominal cavity or fallopian tubes and other places outside the uterine cavity. Blood HCG levels are higher than normal in pregnancy, and ectopic pregnancy is also a type of pregnancy, so blood HCG levels are also higher than normal in ectopic pregnancy. Simply by checking the blood HCG level can only represent pregnancy, can not identify whether it is ectopic pregnancy or intrauterine pregnancy, but also need to be combined with other methods of examination, such as clinical symptoms and manifestations, as well as ultrasound and physical examination, etc., so as to be able to make a comprehensive judgment. Therefore, the blood test can only detect whether you are pregnant or not, but cannot determine whether it is an ectopic pregnancy. After pregnancy, women should go to regular hospitals for relevant examinations to confirm whether it is intrauterine pregnancy or ectopic pregnancy as soon as possible.