It's common for people to have eye puffiness or eye bags under the eyes, there are a number of factors can cause that. However, some people would confuse about eye puffiness and eye bags. Hence, there are a few major difference between the two can help you determine ways to distinguish them. Eye bags are created as the skin stretches and sags because loss of muscle tone, and fat accumulates beneath the eye socket. Eye puffiness is described as slightly swollen eyelids, sagging or excess skin and dark circle under the eyes. And the eye bags are displayed beneath the eye, while the eye puffiness is noted around the entire eye. On the other side, eye bags are a sign of increasing downward pressure and gravity on the upper lids, and the eye puffiness is a sign of aging, loose skin.