Cancer occurs when abnormal cells divide uncontrollably, interrupting many necessary functions throughout the body. With the exception of blood cancer, most cancers develop as solid tumors, eventually damaging or shutting down affected organs. Cancer cells can quickly spread to other parts of the body and, as such, treatment is most effective when doctors identify the condition early.
There are several types of skin cancer, including squamous cell, basal cell, and melanoma. Squamous cell presents with a red, scaly bump that may itch or bleed when scraped. A pearly nodule similar in appearance to eczema or an acne scar can indicate basal cell cancer. These two types are often slow-growing and easy to treat. Melanoma is more serious and presents as an asymmetrical, dark-colored mole. The growth may change shape over time and can spread to other parts of the body.
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