Belly fat is bad for the way that messes up with your body. When that stubborn fat settles in your abdomen area that's when the real problem begins.
Research shows that your waist size is a bigger risk (believe it or not) than your body fat percentage.
This type of fat has a name and it is "visceral fat", it affects the body's ability to produce insulin. Not only you'll be overweight, you are also risking having type 2 diabetes, high blood pressure, high cholesterol, heart disease, etc.
Best way to combat this is by dieting and exercise, so get moving and don't stop.