The TSC Alliance is an internationally recognized nonprofit that does everything it takes to improve the lives of people with tuberous sclerosis complex (TSC). TSC is a rare genetic disease that causes tumors to grow in different organs, from the brain and heart to the lungs and kidneys to the skin and eyes. Nearly one million people worldwide have TSC. Some live independently with few symptoms while others require complex care. We drive research, increase care quality and access, inspire hope and advocate with and for all affected by the disease. The TSC community is our strongest ally. With the power of individuals, families, organizations and more, we can create a future where everyone with TSC can realize their full potential—no matter how complex their journeys are to get there.