A Bidirectional Mendelian Randomization Study of Androgenetic Alopecia and Obesity

This study used a bidirectional Mendelian randomization approach to investigate the causal relationship between androgenetic alopecia (AGA) and obesity. The analysis, which included various statistical methods and sensitivity tests, found no significant causal effect of obesity on AGA or vice versa. The results suggest that previously observed correlations between obesity and AGA are likely due to confounding factors rather than a direct causal link. This provides new genetic epidemiological evidence for understanding the pathogenesis of AGA.