Why does st peregrine shown with a gash on his leg?

St. Peregrine is often depicted with a gash on his leg to symbolize his battle with cancer, which he miraculously overcame. The wound represents his suffering and the trials he faced, highlighting his deep faith and the healing he received through prayer and divine intervention. As the patron saint of those with cancer, his imagery serves as a reminder of hope and resilience in the face of illness.