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What happens if a sperm has two heads?

By Zaira Salvador.
Last Update: 11/27/2018

Double-headed sperm are non-viable. They are unable to fertilize the egg and result in viable embryos. Thus, they are always dismissed in IVF cycles. When a sperm has two heads, the genetic material is also duplicated, which results in triploid embryos. When this happens, embryonic arrest occurs a few days following fertilization anyway.

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 Zaira Salvador
Zaira Salvador
BSc, MSc
Embryologist
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)
License: 3185-CV
Embryologist. Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI) License: 3185-CV.
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