Most cases of squamous cell cancers can be cured, if detected early. Overexposure to UV rays of the sun. Often this cancer appears as a firm red bump, and may feel scaly with red patches. It is typically found on the top of the nose, forehead, lower lip and hands. However they must be treated promptly.
Malignant melanoma is the most dangerous form of skin cancer and can be fatal if left untreated.
If untreated it spreads to other organs, especially the liver, lungs, bones and brain. Melanoma begins in the skin cells which produce the dark protective pigment called melanin. Melanoma cells usually continue to produce melanin. This is why such cancers can appear in mixed shades of tan, brown and black. It has a tendency to spread quickly.