Cancer is one of the leading causes of death worldwide, but many types are preventable or treatable when detected early.
Cancer occurs when abnormal cells grow uncontrollably, potentially invading other tissues. There are more than 100 types, including breast, lung, colon, and skin cancer.
Regular screening tests can detect cancer at an early stage when it is most treatable. Mammograms, colonoscopies, and skin checks are among the most effective tools available.
Sources: World Health Organization (WHO), American Cancer Society, National Cancer Institute