A 37-year-old member asked:
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isn't 2% of sperm penetration for in vitro fertilization fine since there are millions of sperm and 1 egg?

1 doctor answer
Dr. Michael Traub
18 years experience Fertility Medicine
Maybe: When we evaluate sperm , information can be used in certain ways, we can categorize sperm as normal, mildly abnormal or severely abnormal. We have some idea of how each parameter matters, but certain aspects are not understood . With significant abnormalities, sometimes the sperm just do not function as well, or sometimes the sperm may have genetic abnormalities and the effect goes beyond the #.
Answered on Jul 27, 2012

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