W hen then-3-year-old Clayton Moorse’s parents tried dressing him in a shirt he wore only a few weeks earlier, ... Boy, 3, ...

An umbilical hernia is a tissue bulge on or near your belly button. They’re most common in babies. WebMD explains what you need to do about this common condition.

Clayton's belly became very distended and his parents couldn't put a shirt on him. Tests showed the toddler had a Wilms tumor, a common childhood cancer. Boy, 3, had a bloated belly.