The relationship between blood lipids and endometriosis: a cross-sectional study from NHANES (1999–2006) and a bidirectional Mendelian randomization study

Observational studies suggest a link between blood lipid levels and endometriosis risk, but clinical evidence is limited and causality has not been established. This study aims to clarify this relationship using NHANES data (1999-2006) and bidirectional Mendelian Randomization (MR) analysis.