A newly developed nomogram predicts the risk of parastomal hernia in patients undergoing permanent colostomy for rectal cancer, crucial for improving patient outcomes.

• In a study of 430 patients, 30.9% developed parastomal hernia.
• Key risk factors include age ≥ 65 years (odds ratio 2.51) and BMI ≥ 25 kg/m² (odds ratio not specified).

This tool enables targeted management for high-risk patients, enhancing their quality of life.

• The nomogram was validated internally through rigorous statistical methods.