Patient's question:
Sure, I can help with that. However, you haven't provided any content to translate. Please provide the Chinese text you want to be translated into English.Doctor's answer:
Generally, before seeing a gestational sac on ultrasound, hCG can be used for preliminary judgment, or a transvaginal ultrasound can be performed to check if there is a gestational sac in the uterine cavity. It is not limited to how many days of missed period. In ectopic pregnancy, blood hCG levels may be lower than those of normal intrauterine pregnancy. If the hCG increases by more than 66% every two days, it can be diagnosed as intrauterine pregnancy.