How Many Different Kinds of Skin Cancer Are There?

When people hear “skin cancer,” they often think of it as a single disease. In reality, skin cancer comes in several distinct forms, each with different causes, behaviors, and levels of risk. Understanding the types can help you recognize warning signs early and know why regular skin checks matter. So, how many kinds of skin cancer are there? The short answer: four main types, plus several rarer ones.
The Four Main Types of Skin Cancer
Basal Cell Carcinoma (BCC)
Basal cell carcinoma is the most common type of skin cancer.
- Grows slowly
- Rarely spreads to other parts of the body
- Often appears as a pearly bump, shiny spot, or scaly patch
- Strongly linked to long-term sun exposure
While BCC is usually very treatable, it can cause local damage if ignored.
Squamous Cell Carcinoma (SCC)
Squamous cell carcinoma is the second most common type.
- Can grow faster than basal cell carcinoma
- Has a higher chance of spreading if untreated
- Often looks like a rough, scaly, crusted, or bleeding lesion
- Common on sun-exposed areas such as the face, ears, and hands
Early treatment is important to prevent complications.
Melanoma
Melanoma is the most dangerous form of skin cancer.
- Develops from pigment-producing cells (melanocytes)
- More likely to spread to lymph nodes and organs
- Often starts as a new or changing mole
- Can appear anywhere on the body, even areas not exposed to sun
Although melanoma is less common than BCC or SCC, it causes the majority of skin cancer deaths—making early detection critical.
Merkel Cell Carcinoma
Merkel cell carcinoma is rare but very aggressive.
- Appears as a firm, painless, fast-growing nodule
- Often red, pink, or skin-colored
- More common in older adults and people with weakened immune systems
- Frequently found on sun-exposed skin
Because it spreads quickly, prompt diagnosis and treatment are essential.
Rarer Types of Skin Cancer
In addition to the four main types, there are several uncommon forms of skin cancer, including:
- Kaposi sarcoma
- Cutaneous lymphoma (T-cell or B-cell)
- Sebaceous carcinoma
- Dermatofibrosarcoma protuberans (DFSP)
- Cancers of sweat or oil glands (adnexal carcinomas)
These are much less common but still important in specialized medical care.
So, What’s the Final Count?
- 4 major types are most commonly referenced
- 10 or more total types when rare forms are included
Why This Matters
Knowing that skin cancer isn’t just one disease helps explain why:
- Some skin cancers are easily treated
- Others require urgent, aggressive care
- Regular skin checks and Dermatologist visits for skin cancer exams are very important
If you notice a new spot, a sore that won’t heal, or a mole that’s changing in size, shape, or color, it’s worth getting checked—early detection saves lives. Led by David Kosiorek, PA-C, and Michael J. Freeman, MD, Lumen Dermatology prioritizes thorough exams to support early detection and optimal patient outcomes. Residents of The Villages, Wildwood, and the greater Central Florida area have access to advanced, convenient screening services close to home. Call us today at 352-830-1500 to set up your consultation!







