It is estimated that infertility affects 8–12% of couples globally, with a male factor being a
primary or contributing cause in approximately 50% of couples. Causes of male subfertility …

An accurate medical history and directed physical examination are essential in diagnosis of
male infertility. We review the hormonal assessments and specific genetic analyses that are …

Infertility is a widespread problem and a male contribution is involved in 20–70% of affected
couples. As a man's fertility relies on the quantity and quality of his sperm, semen analysis is …

One couple in 10 seeks medical help because of infertility. A 1982–85 multicentre study by
the World Health Organization found that in 20% of cases the problem was predominantly …

Over the past 40 years, sperm counts worldwide have halved and sperm quality has
declined alarmingly with 1 in 20 men currently facing reduced fertility [1]. Potential causes of …

Clinical infertility is the inability of a couple to conceive after 12 months of trying. Male factors
are estimated to contribute to 30–50% of cases of infertility. Infertility or reduced fertility can …

Abstract The WHO (World Health Organization) manuals provide state-of-the-art guidance
on how a semen analysis should be carried out. The much anticipated sixth edition of the …

Assesses the pathogenesis and management of male infertility. Impaired sperm production
and function; Impaired sperm transport; Disturbances in sperm-oocyte fusion; Unexplained …

Approximately 1 in 20 young men today have sperm counts low enough to impair fertility,
whereas this may not have been the case historically. The cause (s) of such a decline in …

Each year more than seven million couples worldwide seek evaluation for the inability to
conceive a child, a problem that affects approximately 15% of couples. 1, 2 Among these …