Male Infertility Epidemiology and Management

Male infertility contributes to approximately half of all infertility cases worldwide, with estimates suggesting that 2.5–12% of men of reproductive age are affected to varying degrees. Prevalence shows marked regional variation, with higher rates observed in parts of Africa and Eastern Europe. Etiology is multifactorial, encompassing endocrine disorders, genetic and chromosomal anomalies, environmental exposures, lifestyle factors and idiopathic presentations. Diagnosis relies on a hierarchical approach beginning with detailed history and physical examination, followed by hormonal profiling, ultrasound imaging and semen analysis. Semen analysis remains the cornerstone, classifying abnormalities into azoospermia, oligozoospermia and asthenozoospermia. Management strategies range from lifestyle modification and medical therapy to assisted reproductive technologies. In cases of non-obstructive azoospermia genetic evaluation guides decision-making, while pharmacological modulation of endocrine pathways can benefit selected patients. Assisted techniques such as intra­cytoplasmic sperm injection have transformed outcomes for many couples. Emerging complementary approaches targeting oxidative stress, genomic integrity and psychosocial well-being are under investigation. Harmonising epidemiological surveillance, improving access to diagnostics and integrating holistic care pathways are central to meeting the global challenge of declining male fertility.

Research from Nature Portfolio

Recent interventional studies have demonstrated that mind–body practices can exert profound effects on sperm quality and molecular markers of reproductive health. A six-week structured yoga programme in males experiencing recurrent pregnancy loss and implantation failure resulted in significant increases in sperm concentration and motility, reductions in seminal reactive oxygen species and DNA fragmentation, elongation of sperm telomeres and normalisation of gene expression profiles associated with early embryonic development. Participants also reported enhanced quality-of-life scores. These findings indicate that integrated lifestyle-based interventions may complement conventional fertility treatments by improving genomic integrity and reducing oxidative damage.

Male Infertility Epidemiology and Management publication trend

The graph below shows the total number of articles in male infertility epidemiology and management across all publications each year (not limited to Nature Index journals).

Technical terms

Azoospermia: Complete absence of spermatozoa in the ejaculate.

Oligozoospermia: Lower than normal sperm concentration in semen.

Asthenozoospermia: Reduced sperm motility.

Idiopathic infertility: Infertility without an identifiable cause after standard evaluation.

Intracytoplasmic sperm injection (ICSI): An assisted reproductive technique in which a single sperm is injected directly into an oocyte.

References

1. A unique view on male infertility around the globe. Reproductive Biology and Endocrinology (2015).
2. The genetic causes of male infertility: a Middle East and North Africa perspective. F1000Research (2022).
3. Association of Urinary Mycotoxins with Sperm Quality: A Case-Control Study in Southern Nigeria. Toxins (2024).
4. Yoga and its effect on sperm genomic integrity, gene expression, telomere length and perceived quality of life in early pregnancy loss. Scientific Reports (2024).