Skin growths are of different types and they grow for different causes. The skin growths which are malignant are graded as skin cancer. The growth generally happens on the epidermal layer of the skin. There are three skin cancer types: BCC or the Basal cell cancer, SCC or the squamous cell cancer and malignant melanoma. The first two types of cancer are tumors that are visible on the top or under the skin. They are tumors with visible blood veins and are sometimes ulcerous. The second type of skin cancer is red, scaly patch and if not taken care spreads rapidly. The third type of skin cancer is mostly fatal and detected by its color change and irregular border.