TTC With Adenomyosis and Endometriosis: Preparing for IVF

Trying to conceive with adenomyosis and endometriosis, and starting IVF soon — where do you actually start?

If tubal patency has already been confirmed clear and endometriosis has already been surgically treated, but pregnancy still hasn't happened, that pattern genuinely does point toward the uterine and implantation environment specifically — and adenomyosis has real, documented mechanisms for disrupting implantation independent of anything a dye test or tubal flush can detect. The most useful thing to do before a first IVF cycle isn't to brace for a number of failed attempts — it's to bring specific, evidence-backed questions about pre-transfer protocol options to your RE now, before the first transfer, not after.

Why Adenomyosis Can Be the Bigger Barrier Even When Everything Else Looks Clear

This is worth understanding clearly, because "tubes are open and endo has been treated, but still no pregnancy" can feel like an unexplained dead end. It usually isn't. Adenomyosis creates a genuinely hostile implantation environment through mechanisms a standard workup doesn't test for: increased natural killer cell and macrophage density in the endometrium, producing inflammatory mediators that are directly harmful to embryos in that environment; elevated nitric oxide levels associated with impaired implantation; and hyperperistaltic uterine contractions linked to higher rates of implantation failure and early loss. Two large meta-analyses have confirmed adenomyosis is independently associated with lower implantation rates across assisted reproductive technology, separate from tubal or endometriosis-related factors. None of this shows up on a dye test or tubal flush — which is exactly why a clear result there doesn't rule out adenomyosis as the primary barrier.

For anyone with a similar history — surgically treated endometriosis, confirmed open tubes, no prior pregnancy — this pattern is a real, recognized clinical picture, not a mysterious dead end your care team is guessing at — we see it regularly in patients across Long Island and NYC preparing for a first IVF cycle. If a failed transfer does happen despite this preparation, our piece on failed FET with severe adenomyosis covers the alternative protocol options worth discussing next.

Does Natural Conception Happen With Adenomyosis?

Yes, genuinely — but this is one area where individual stories can't meaningfully predict your own odds, and it's honest to say that upfront rather than imply otherwise. What's worth knowing instead of an anecdote: if excision surgery for endometriosis has happened reasonably recently, there's real evidence that the weeks to months immediately following surgery represent a measurably lower-inflammation window in the pelvic environment, tied to the removal of inflammatory lesions rather than just symptom relief. This window isn't permanent — adhesion reformation and inflammation can gradually return — which is part of why timing matters if it's still something within your control. Our piece on the 90-day window after excision surgery goes deeper into this specific mechanism.

What's Worth Asking Before Your First Transfer, Not After

This is the part most patients don't get to act on, simply because they don't learn about it until after a transfer has already failed. Since you haven't had a failed transfer yet, there's real value in bringing this up proactively.

The research on pre-transfer suppression protocols for adenomyosis is genuinely still evolving — some studies support extended GnRH agonist suppression before transfer, with real improvements in implantation and ongoing outcomes reported in several cohorts, while a more recent, larger systematic review found more mixed results and cautioned that the evidence base isn't yet strong enough to declare one clear best approach. One study specifically relevant to unexplained transfer failure found meaningfully better outcomes when patients were pretreated with two months of GnRH agonist suppression before their next attempt, compared to no pretreatment. Combining GnRH agonist suppression with an aromatase inhibitor is described in recent reviews as particularly relevant for more severe adenomyosis specifically, given adenomyotic tissue's tendency to locally overproduce estrogen.

None of this is a recommendation from us for what your specific protocol should be — that decision depends on your imaging findings, the extent and pattern of your adenomyosis, and your RE's clinical judgment. But "given my adenomyosis, would extended suppression before this first transfer make sense, rather than adjusting only if a standard protocol doesn't work" is a genuinely well-informed, specific question worth asking directly, rather than discovering these options only after a difficult first attempt.

The Bottom Line

A confirmed clear dye test and treated endometriosis don't rule out adenomyosis as a real, primary barrier to implantation — the mechanisms involved are well documented and simply aren't visible on standard imaging. Here in Huntington, we see this exact pattern often in patients preparing for their first IVF cycle, and the most useful preparation isn't bracing for a number of attempts — it's bringing specific, evidence-informed questions about pre-transfer protocol options into that first conversation with your RE. If you'd like support investigating the inflammatory and metabolic factors that intersect with adenomyosis alongside your RE's protocol, our Metabolic & Immune Fertility Evaluation is built for exactly this kind of complex case.

This article is for general educational purposes and isn't a substitute for individualized guidance from your reproductive endocrinologist. Protocol decisions for adenomyosis and embryo transfer preparation should be made directly with your care team, based on your complete clinical history.

East to West Fertility, led by Dr. Greg, is a metabolic and immune-focused fertility clinic in Huntington, Long Island, serving patients across Long Island, NYC, and beyond. Learn more about our Metabolic & Immune Fertility Evaluation or call 631-416-4940.

References:

• "Ultra-Long GnRH Agonist Protocol During IVF/ICSI Improves Pregnancy Outcomes in Women With Adenomyosis: A Retrospective Cohort Study." PMC8202082.
• "Utility of GnRH Agonists before embryo transfer in women with adenomyosis: Systematic review and meta-analysis." 2024. PMC12469277.
• "Effect of extended hormonal suppression in patients with adenomyosis undergoing embryo transfer." Frontiers in Reproductive Health, 2026.
• "Inflammatory Changes after Medical Suppression of Suspected Endometriosis for Implantation Failure: Preliminary Results." PMC11241468.
• "'Seeing is believing': arguing for diagnostic laparoscopy as a diagnostic test for endometriosis." Reproduction and Fertility, 2022.