Tuberous sclerosis causes growths in the brain, eyes, heart, kidney, skin or lungs.
The first signs may be seizures and spots on the skin. Some people who have tuberous sclerosis may have learning problems or seizures that are hard to control. Tuberous sclerosis isn't common, but it isn't rare either. Up to 40,000 people in the United States have it. The disorder occurs in both sexes and in people of all races and ethnic groups.