Can alcohol or caffeine worsen endometriosis infertility?

Yes—alcohol and caffeine may matter for some people, but they’re unlikely to be the main driver of endometriosis‑related infertility on their own. Endometriosis can impair fertility through inflammation and immune signaling, effects on egg quality and ovulation (especially with endometriomas), changes in fallopian tube function and pelvic anatomy, and altered uterine receptivity—so the picture is usually multifactorial.

In the research, alcohol and caffeine show up more as potential contributors to hormone metabolism, inflammation, oxidative stress, and sleep/stress physiology than as clear, stand‑alone causes of infertility. That means some patients notice improvement when they reduce or eliminate them, while others see no meaningful change—especially if active disease (like deep endometriosis, tubal involvement, or endometriomas) is the dominant issue. If you’re trying to conceive and wondering what role these exposures might be playing in your case, our team can help you map your symptoms, imaging, ovarian reserve considerations, and prior fertility history to a plan that targets the factors most likely to move the needle.