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Male infertility 

Male infertility
Chapter:
Male infertility
Author(s):

Enda McVeigh

, John Guillebaud

, and Roy Homburg

DOI:
10.1093/med/9780199650682.003.0014
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date: 31 July 2021

Introduction

Aetiology

Investigation of the male

Further information

Other than in cases of absolute azoospermia or severe oligospermia/asthenospermia, the impact of a male factor on a couple’s infertility is difficult to quantify. Indeed, as can be seem in men after a vasectomy when extremely small amounts of motile sperm can be present, conception can occur. Accepting this ‘male factor’ may be a contributing if not absolute factor in ~25% of cases of subfertility....

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