Basal Cell Nevus Syndrome (BCNS), also known as Gorlin syndrome, is a genetic condition that increases the risk of developing multiple basal cell carcinomas, a type of skin cancer. It is caused by mutations in the PTCH1 gene, which plays a role in cell growth and division. Individuals with BCNS may also experience other abnormalities, including jaw cysts and skeletal anomalies. People with BCNS often show signs of the syndrome in their teenage years or early adulthood. Regular skin examinations and monitoring for tumors are essential for managing the condition. Early detection and treatment can help prevent complications associated with the syndrome.