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Male factor infertility in 2011

Semen quality, sperm selection and hematospermia

The past year has seen several new developments in the field of male reproductive health, including a major revision of how urologists should assess semen quality following the release of new WHO guidelines, novel approaches to sperm selection for intracytoplasmic sperm injection, and changes in how clinicians might evaluate and treat patients with hematospermia.

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Correspondence to Stanton Honig.

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The authors declare no competing financial interests.

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Kilchevsky, A., Honig, S. Semen quality, sperm selection and hematospermia. Nat Rev Urol 9, 68–70 (2012).

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