How many hCG units can you see a gestational sac?

Patient's question:

No

Doctor's answer:

Generally, it is necessary to wait at least 6 weeks to see the yolk sac. It is recommended that you delay the follow-up check by one or two weeks to see if it is visible. If you have not taken highly toxic drugs during pregnancy, there is no need to worry. It is better to delay the follow-up check by two weeks.