Cancer has the potential to metastasize, or spread, to other organs and tissues, which can make it much more challenging to treat and control. Early diagnosis and treatment can help prevent or minimize the spread of cancer, limiting its impact on the body. Also, when cancer is detected early, there is a better chance of preserving the normal function of affected organs or tissues. For example, in the case of breast cancer, early detection may allow for breastconserving surgery (lumpectomy) rather than a full mastectomy.