Cancer and rare genetic disorders intersect in several ways, as some genetic conditions predispose individuals to certain types of cancer. Conditions like Li-Fraumeni syndrome, Lynch syndrome, and Cowden syndrome are characterized by an increased risk of various cancers, often at a young age. Research into these rare genetic disorders is crucial for understanding the molecular mechanisms that drive cancer development. Advances in genetic testing are making it easier to identify individuals at high risk, allowing for early intervention and personalized treatment plans. Additionally, these genetic insights are informing broader cancer research, as understanding the specific mutations in rare genetic disorders can help in developing targeted therapies that may benefit a wider range of patients.