Is a blood hCG level of 6.73 mIU/ml on the sixth day after blastocyst transfer normal?

In general, blastocyst transfer refers to in vitro fertilization (IVF) blastocyst transfer. On the sixth day after IVF blastocyst transfer, a blood value of 6.73 mIU/ml is considered normal. The detailed analysis is as follows:

Since the time since transfer is still short, the embryo may not have implanted yet or may just be beginning to implant. In most cases, the hormone levels cannot yet be detected through blood tests at this stage, so blood testing at this point is usually not very meaningful. During this period, a blood value between 0 and 100 mIU/ml is considered normal. Blastocysts are typically formed after culturing fertilized eggs for 4–6 days, and their development can be influenced by various factors such as embryo quality, postoperative medication, and timing of monitoring. It is generally recommended to wait 12–14 days after transfer for a more accurate pregnancy test, as testing too early may yield inaccurate results. Patients should undergo relevant examinations under the guidance of their physician.

If patients experience any discomfort, they should promptly visit a hospital for targeted evaluation and treatment to avoid delaying medical care.