• developmental delays.
• seizures.
• intellectual disabilities.
• an abnormal heart rhythm.
• noncancerous tumors of the brain.
• calcium deposits on the brain.
• noncancerous tumors of the kidneys or heart.
• growths around or underneath the fingernails and toenails.

Symptoms usually show up early, shortly after birth. But they can also appear later in life.

Your symptoms depend on how many tumors you have, how big they are, and where they are. When you have TSC, all of that can change throughout your life.  Tumors in a kidney can stop it from working like it should. They can also cause bleeding inside your body or high blood pressure.

Tumors in your heart usually happen when you’re young, and they shrink over time. But they can block blood flow or cause problems with your heart rhythm.

Lung tumors can make you short of breath, even after mild exercise. They can also cause a cough or make your lung collapse.

Tumors in your brain could cause:

• Seizures, which can be mild at first
• Behavior changes, such as temper tantrums, anxiety, or sleep problems
• Nausea or headaches
• Problems such as autism and developmental delays

Tumors in your eyes can make you see double or give you blurry vision.

In other places in your body, you may have patches of different color skin and dark or light growths that might look like warts.

In your mouth, tuberous sclerosis can weaken the enamel on your teeth or make your gums overgrow.

Causes :