Genetically driven increases in MIP‐1α and IL‐17 were associated with a higher risk of BD, as revealed by the IVW method (odds ratio [OR] = 1.084, 95% confidence interval [CI] = 1.002–1.174, p = 0.044; OR = 1.119, 95% CI = 1.021–1.226, p = 0.016) and weighted median (OR = 1.117, 95% CI = 1.011–1.234, p = 0.029; OR = 1.137, 95% CI = 1.021–1.266, p = 0.019). The gene discussed is CCL3; the disease is Behcet disease.