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What is sperm morphology?

Morphology refers to the size and shape of the sperm and is an area that is commonly abnormal in infertile couples. Normally, sperm have an oval-shaped head, a thickened midpiece, and a long, thin tail that beats back and forth. Sperm with abnormal morphology may have heads that are too large or too small, two heads, two tails, long tapered heads, or broken midpieces and tails.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.