Roughly 15 to 30% of couples who go through a workup don't get a clear diagnosis, even after a complete evaluation. That doesn't mean there is no cause: it means the cause isn't detectable with current technology. Treatment follows a gradual approach, from optimized attempts to ovulation induction with insemination and, if that doesn't work, IVF.
The book lists the possible hidden causes behind an unexplained diagnosis:
“Unexplained” only applies after a complete evaluation of both partners. In cases without red flags, the book describes the workup moving forward gradually, not all at once:
In unexplained infertility, a karyotype of both partners is one of the genetic tests the book lists as indicated: it shows large chromosomal changes.
On the book's treatment ladder, the simpler steps usually get 3 to 6 cycles each before moving up, and IVF gets 1 to 3 cycles before the strategy is reassessed. Skipping rungs can be justified in specific cases, such as advanced age. Where you start and when you move up are decisions to make with your specialist.
Two questions from the book's first-appointment script are especially useful here:
The book considers a second opinion good medical practice when the initial diagnosis is unexplained infertility. Ask for copies of all your test results and reports, book with another specialist and present the case neutrally, without leading with the previous diagnosis, to see what approach they propose from scratch.
A second opinion also makes sense when:
The book's message for this diagnosis is direct: “unexplained” isn't a sentence. There are paths forward.
Unexplained infertility is diagnosis number 8 in Chapter 33 of Map to the Positive, in Station IV (Signs). That station walks you through every advanced test, how to choose the right doctor and when to ask for a second opinion, the full treatment ladder and IVF phase by phase, plus a chapter on protecting your mental health during the workup.
Take 30 days. If it does not give you more clarity than everything you have read for free so far, ask for a refund and you get every cent back. We cannot promise you a pregnancy. We can promise you will not be guessing.
References: ASRM Practice Committee. Evidence-based treatments for couples with unexplained infertility, 2020.