Can endometriomas lower AMH without affecting egg quality?

Yes—an ovarian endometrioma can be linked with a lower AMH (a marker of ovarian reserve) without automatically meaning your egg quality is “bad.” AMH is mainly a proxy for how many small follicles are available overall, not a direct test of egg quality, and it can’t show what’s happening in each ovary separately.

With endometriomas, we often see a more “local” impact on the ovary that has the cyst—something an ultrasound antral follicle count (AFC) can capture better than a single AMH value, especially when the cyst is one-sided or changing in size. That’s why it’s possible to have an AMH that looks discouraging while still having reasonable egg/embryo potential, depending on age, AFC by ovary, and the full clinical picture.

If you’re trying to decide between monitoring, fertility treatment, or surgery, our team can help interpret AMH alongside AFC and cyst characteristics so the plan protects both your quality of life and your reproductive options. Reach out to schedule a consultation if you’d like a personalized review of your imaging and fertility testing.