Cancer, heart disease, the common cold – these medical conditions are well known to the public, as they affect many people. But did you know there is a genetic condition that causes it the baby suddenly loses all its fat after birth? Or an aggressive autoimmune disorder that can causes the bridge of the nose to collapse? Or the disease that causes it the skin blisters under even the lightest pressure? Every week on Live Science, we call attention to a rare disorder that may not be widely known, explaining its symptoms, treatment, causes, and recent cases that caught our attention.