Some couples pay close attention to the grade of their embryos during transfer. If the grade is high, they feel relieved, which is a completely normal reaction and understandable. In reality, embryo grading is simply based on the “appearance” of the embryo at that specific time (days 3–6). Embryos that meet the criteria and look good are given higher grades, while others are graded lower.
Whether it’s a high-grade embryo or a low-grade embryo, there is still a chance of pregnancy after transfer. However, the likelihood of pregnancy varies with the grade of the embryo. As the grade decreases, the probability of pregnancy also decreases. That said, a low-grade embryo does not mean there is no hope for pregnancy after transfer.
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