Yes. The most common type of skin cancer is basal cell carcinoma. Often these skin cancers are very subtle and appear like a small pimple that will not heal and will often bleed. The second most common skin cancer is squamous cell carcinoma. This type usually appears as a thickened, scaly plaque or nodule. Melanoma is an additional type of skin cancer, which behaves differently than either basal cell carcinoma or squamous cell carcinoma. It most commonly appears as an abnormal mole.