Latest posts
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Water disinfection by-products and semen quality: why timing matters
A study of 762 men linked blood trihalomethanes with semen measures, especially exposure 70–90 days earlier. It does not prove tap water causes infertility.
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Three GALNT genes linked to distinct sperm head and tail defects
Analysis of 1,826 men linked GALNT3, GALNT8 and GALNTL5 variants to sperm defects. Reported ICSI outcomes were comparable, with important limits.
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Does ZyMot improve IUI pregnancy rates with high sperm DNA damage?
A study of 132 men found no significant IUI pregnancy benefit with ZyMot versus density-gradient preparation. Larger randomized studies are needed.
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Ultra-processed foods and fertility: why a couple’s diet includes the male partner
A couples study linked men’s ultra-processed food intake with lower fecundability. Explore the observational findings, embryo measurements and limitations.
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PFOA and sperm-forming cells: laboratory research explores possible injury pathways
Laboratory research explores how PFOA may injure sperm-forming cells through stress and cell-death pathways. These findings do not establish human treatment.
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Normal glucose and cholesterol do not guarantee sperm health: a study of 8,393 men
A study of 8,393 men linked obesity with poorer sperm measures despite normal metabolic tests. Learn the findings and the limits of observational evidence.
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Can a routine blood test predict sperm motility or DNA damage?
In 264 men, weak blood–semen correlations lost significance after multiple-testing correction. Routine blood tests cannot replace semen analysis.
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Four gene variants linked to poor sperm motility and abnormal shape
Analysis of 13 families identified four genes linked to poor sperm movement and shape. Mouse experiments support CFAP46 function; clinical limits remain.
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Round-headed sperm and ICSI outcomes: what a study of sperm shape found
A study of 1,456 men and 166 treated couples linked round-headed sperm with DNA damage and IVF/ICSI outcomes. The 7.2% cutoff needs validation.
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Male infertility and chronic inflammation: could the immune system affect sperm?
A review examines immune barriers, antisperm antibodies, inflammaging and the gut microbiome in male infertility, without proving treatment benefit.