In 2013, Sandy Fontan was a 53-year-old marathon runner in tip-top shape. She maintained a healthy diet and ran between 25 and 30 miles a week. Then, one day, she noticed a little bump on her anus. It didn’t hurt or bleed, so she thought it was a hemorrhoid. She watched it for more than a year before mentioning it to her gynecologist.
Today, Sandy wishes she’d mentioned it sooner. Because that little bump turned out to be something more serious: an extremely rare type of cancer called extra-mammary Paget’s disease, which usually appears on the skin of the breast.