Infertility Has a Male Problem |
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Roughly half of all infertility cases involve a male factor, yet women still undergo first evaluation.
This imbalance is rooted in centuries of patriarchal medicine, not biology alone.
A balanced, couple-based evaluation reduces medical and emotional burden, improving outcomes.
E and J sat in front of me. She had her arms crossed. He sat slightly apart, turning his phone over in his hands. They were nice people. Smart, thoughtful, both with careers they liked.
So why were they in my office?
Something intangible.
For many months, the two of them had moved through fertility investigations and treatment. Hormone panels. A miscarriage. Two egg retrievals. All of it focused on E.
Until J’s brother, going through his own fertility journey, discovered a genetic issue with his sperm. J brought it to the doctors immediately. And only then did the attention turn to him.
What E had been carrying, for the longest time, wasn’t actually hers to carry. She had shouldered the blame, even though J hadn’t openly blamed her. In fact, J had been transparent the moment he knew.
Neither of them knew how to talk about it, or why E had resentment and J had confusion*.
Much has changed in terms of fertility treatment. Research has expanded, treatments have improved, and public conversation has opened up in ways it never used to.
But something remains essentially stuck.
Infertility is still widely treated as a woman’s issue. You see it in who walks into the clinic first, who gets tested first, and in who initially carries the weight of something “being wrong.” It is often an automatic assumption, fueled by the commonplace idea of the biological clock that’s racing against time. So, naturally, she approaches the doctor first.
His Clock Was Always There Too
It’s interesting to me that male sperm aging is still treated as an afterthought, though the data has been there for a while.
Sperm quality begins to decline in the mid-30s and accelerates after 40 (Harris et al., 2011; Xie et al., 2025). Volume drops, motility slows, and DNA fragmentation rises. Advanced paternal age has also been linked to longer time to conception, higher miscarriage risk, and elevated risk of certain neurodevelopmental conditions in offspring, including autism and schizophrenia (Sandin et al., 2016). At least 6,800 sperm samples later (Xie et al., 2025), we know his clock has always been there.
It’s not surprising then that half of all infertile couples have a male-factor component. More specifically, male factors are the sole cause........