The letter responds to a recent publication on the modified frailty index (mFI) and its ability to predict postoperative morbidity in elective hernia repair patients. While the authors support the conclusions of the study, they express concerns about certain details. They suggest that the study should have considered other objective measurements that influence body composition and frailty, such as physical activity levels and nutrition. Additionally, they recommend balancing the age difference between the two groups of patients and including more detailed data on sociodemographic factors and pre-existing comorbidities for statistical adjustments. The authors caution that the study's findings should be interpreted cautiously until these issues are clarified.