Hi friends, we’re really glad you’re here 🤍
We've been thinking this week about the person who usually sits in the second chair.
For all the attention infertility gets, one fact still manages to stay quiet: male factors are involved in about four in ten cases. That's not a rare complication, it's a leading reason couples end up seeking medical assistance on their TTC journeys. And yet the men living it are often the least informed, least examined, and least supported people in the room.
This week we wanted to take a look at the state of male factor fertility from a couple of key angles.
Let’s get into it.
In this Issue We'll Cover...
When Zero Isn’t Zero
For a long time, a diagnosis of azoospermia, no sperm found in the sample, has sounded like a door closing. It turns out that word was always carrying more uncertainty than it let on.
This piece digs into what "zero" has actually meant all along, and how a new class of AI-assisted tools (including a Columbia method called STAR that scans over eight million images in an hour) is finding sperm where human eyes found none. We cover what it changes, what it doesn't, and the honest caveats the headlines tend to skip.
👉 Read: When Zero Isn’t Zero
The Reading Room
Three features that caught our attention this week:
What's New from Fertility and Sterility, July 2026 (ASRM). The research current running underneath this week's theme. Notably, AI-assisted imaging that spotted ultrarare sperm in nearly half of samples once called azoospermic, and a proposed new term, "microzoospermia," for the gray zone between some and none. For readers who like their news straight from the journals.
Bringing Andrology, and Male Infertility, Out of the Shadows (Undark). A sharp magazine feature on why the science of male reproduction has lagged so far behind, and what it costs patients when half the equation is an afterthought. The backstory to a gap you can still feel in most clinics.
"It made me feel less of a man knowing I may never be a dad" (The Conversation). If the second feature resonates, read this next. First-person and unguarded, on the specific grief men are rarely handed the words for. For anyone who has answered "I'm fine" when they weren't.
The Overlooked Half: Male Mental Health in Fertility Treatment
Male factors are involved in about 40% of cases, yet men's mental health is the part of treatment almost no one is built to notice. We look at what the research actually documents (significant distress in a large share of male patients, and measurably less support than their partners receive), why so much of it stays hidden, and why an unspoken burden in one partner rarely stays contained to that partner.
If you enjoyed this issue of Path to Parenthood, be sure to share with anyone you know who is currently on a TTC journey ❤
