How high does HCG need to be to rule out ectopic pregnancy?

Patient's question:

No

Doctor's answer:

Ectopic pregnancy usually causes some abdominal pain, and compared to intrauterine pregnancy, the HCG level is slightly lower. After being pregnant for a period of time, there may be abnormal vaginal bleeding. Generally, HCG levels combined with ultrasound examination can help suspect and rule out ectopic pregnancy. It is recommended that you have an ultrasound examination to determine the condition of the gestational sac.