There are several types of skin cancer, the most common being:

1. Basal cell carcinoma (BCC): This is the most common type of skin cancer. It is slow-growing and typically appears as a small, raised, pearly bump on the skin. BCC can also appear as a flat, scaly, flesh-colored or brown patch. Treatment options include topical creams, radiation therapy, and surgery, such as Mohs micrographic surgery, which is a specialized type of surgery that removes cancerous tissue while preserving as much healthy tissue as possible.

2. Squamous cell carcinoma (SCC): This type of skin cancer is also common. It typically appears as a scaly, red patch or bump on the skin. SCC can also develop in a sore that won't heal. Treatment options include topical creams, radiation therapy, and surgery.

3. Melanoma: This is the most serious type of skin cancer. It typically appears as a mole or pigmented area on the skin that may be irregular in shape, color, or size. Melanoma can spread to other parts of the body if not caught early. Treatment options include surgery to remove the cancer, radiation therapy, and immunotherapy.

4. Merkel cell carcinoma: This is a rare but aggressive type of skin cancer that appears as a flesh-colored or bluish-red, firm, painless bump on the skin. Treatment options include surgery, radiation therapy, and immunotherapy.

5. Others : Other types of skin cancer include, Kaposi sarcoma, Sebaceous gland carcinoma, Microcystic adnexal carcinoma, and others.

Early detection and proper treatment are key to a successful outcome for skin cancer patients. It's important to regularly check your skin for changes, and to see a dermatologist if you notice any suspicious moles or other skin changes.