Is shoulder pain more common with right-sided diaphragmatic endometriosis?

Often, yes—people with diaphragmatic endometriosis frequently report right-sided shoulder pain. This pattern may relate to how fluid and inflammatory cells circulate within the abdomen and to normal anatomical pathways that can make right-sided irritation more noticeable.

That said, left-sided or even bilateral shoulder pain can also happen, and the side of pain alone can’t confirm (or rule out) diaphragmatic involvement. What matters most is the overall pattern—especially whether the pain flares with your menstrual cycle and whether it comes with other chest or upper-abdominal symptoms. Our team can help you sort out whether your symptoms fit diaphragmatic endometriosis and what next steps make sense, including a surgical evaluation when appropriate.