Background: There exist sex differences in the clinical profile, management, and outcome of atrial fibrillation (AF). Catheter ablation of AF has become a first-line therapy and has markedly made headway over recent decades. Little is known about sex differences and temporal trends in hospitalization for catheter ablation of AF in the real-world setting. Conclusions: Safety of catheter ablation for AF were comparable in both sexes. In contrast, the women showed a higher CHA2DS2-VA score compared with the men. The percentage of patients with CHA2DS2-VA score ≥2 increased more quickly in women than men. Further sex-specific research is warranted to reduce this sex disparity.