National Tuberous Sclerosis Day is observed on May 15 each year in the United States, dedicated to raising awareness of Tuberous Sclerosis Complex (T.S.C.). This rare disease often leads to social marginalization of those diagnosed, prompting efforts by organizations like Tuberous Sclerosis International to combat stigma. The day aims to fight social exclusion related to T.S.C. and raise funds for medical research. It emphasizes that individuals with T.S.C. are not disabled and deserve equal access to education and social activities. Typical actions on this day may include awareness campaigns and fundraising activities to support research and education about the condition.