The results found that genetic liability to BD was protective of IL‐8, as inferred from the IVW (OR = 0.866, 95% CI = 0.766–0.978, p = 0.021) and MR‐Egger methods (OR = 0.420, 95% CI = 0.230–0.765, p = 0.007) as shown in Table 2 and Figure 3. This evidence concerns the gene CXCL8 and Behcet disease.