Dr. Patti Yik explains how immune dysfunction can block embryo implantation even when embryos and standard tests look normal. Three common problems: elevated uterine NK cells, a Th1-Th2 cytokine imbalance that triggers inflammation, and autoimmune conditions like Hashimoto's. Testing can identify these barriers, and treatments like nutrient supplementation, acupuncture, and intralipid IV therapy may help.
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If you've experienced the heartbreak of repeated miscarriages or failed IVF transfers despite good embryos and normal test results, this video is for you. I'm Dr. Patti Yik, a naturopathic doctor with a special focus on complex fertility challenges. One of the most commonly overlooked causes I see in my practice is immune system dysfunction. The immune system plays a surprising role in early pregnancy. While it's designed to protect you, it also needs to make a dramatic shift during conception to tolerate and accept the developing embryo. In some people, this shift doesn't happen properly. The body can misidentify the embryo as a threat, preventing implantation or even causing early pregnancy loss. Let me explain a few of the most common immune imbalances we look at. First, elevated uterine NK cells. These natural killer cells, when overactive, can create a hostile environment that blocks implantation. Second, Th1-Th2 imbalance. A healthy pregnancy requires an anti-inflammatory immune state. If your body leans towards too much inflammation, it can lead to implantation failure. Even with perfect embryos. And third, autoimmune activity. Conditions like Hashimoto's, lupus, or the presence of certain antibodies can interfere with placental development or trigger early miscarriages. Through reproductive immunological testing, we can identify these hidden immune roadblocks. We can run cytokine panels, screen for autoimmune antibodies, measure uterine NK cell activity, and assess gut immune balance to get a complete picture. The best part? These aren't dead ends. There are natural evidence-informed tools we use to support immune tolerance, like targeted nutrients, anti-inflammatory protocols, acupuncture, and intralipid IVs. The goal is to create a more welcoming environment for implantation and give your body its best chance to carry a pregnancy to term. If you've been told everything looks normal, but your heart tells you otherwise, trust your instinct. You don't need to keep guessing. Reproductive endocrinology may hold the answers you've been searching for.
