Which of the following is a risk factor for endometriosis?

Family history is indeed a significant risk factor for endometriosis. This condition appears to have a genetic component, meaning that individuals with family members who have endometriosis are more likely to develop it themselves. Studies have shown that the prevalence of endometriosis is higher among first-degree relatives of affected women compared to the general population, suggesting that genetic predisposition plays a vital role in its development.

In contrast, the other options do not present the same level of association with endometriosis. Multiparity typically indicates a lower risk of developing endometriosis, late menarche is often associated with lower estrogen exposure, and menopause generally leads to a reduction in symptoms as the hormonal environment changes. Thus, the familial link is the most compelling risk factor among the options presented.