Breast, Lung and Colorectal Cancer Research focuses on understanding the biology, risk factors, and treatment responses of three of the most common and deadly cancers worldwide. Breast cancer research explores hormone receptor status, genetic mutations like BRCA1/2, and advances in targeted therapies and immunotherapy. It also emphasizes early detection through mammography and improved survivorship care. Lung cancer research investigates both small-cell and non-small-cell types, with a focus on identifying genetic drivers like EGFR and ALK mutations, and developing personalized treatments including targeted drugs and immune checkpoint inhibitors. Colorectal cancer research addresses the role of lifestyle, inherited syndromes, and molecular changes such as KRAS and MSI status. Screening methods like colonoscopy and the development of novel therapies continue to improve outcomes. Collectively, these research efforts aim to enhance early diagnosis, treatment precision, and survival rates across diverse populations.