From the Women’s Surgery Group:
Very recent studies have conclusively shown that the visual diagnosis of endometriosis is accurate only 60% of the time (at best). This is very important. A patient may be diagnosed with “extensive” endometriosis when little or none is actually present. Alternatively, widespread disease might be missed or mistaken for another condition.
So if a person undergoes surgery without biopsy (or a biopsy taken from the wrong place — the place that “looked like” endo versus the place that actually might have been endo), there’s nearly even odds that the result of the surgery was inaccurate.
Did I mention there’s a multi-year diagnostic delay? Wonder why.