Types of Skin Cancer: Complete Guide

Understanding the different types of skin cancer is essential for early detection and treatment. Each type has unique characteristics, appearance, and level of risk.

Common Types of Skin Cancer

Basal Cell Carcinoma (BCC)

The most common type of skin cancer, usually appearing as a flesh-colored round growth, pearl-like bump, pinkish patch of skin, or a sore that won't heal.

Key characteristics:

• Rarely spreads beyond the original tumor site
• Most common on sun-exposed areas like the face, ears, neck, scalp, shoulders and back
• Often appears as a pearly or waxy bump, a flat flesh-colored or brown scar-like lesion, or a bleeding or scabbing sore

Squamous Cell Carcinoma (SCC)

The second most common type, often appearing as a firm red nodule or a flat lesion with a scaly, crusted surface.

Key characteristics:

• Can grow deep and spread to other parts of the body if not treated
• Often appears on sun-exposed areas like the face, ears, neck, lips, and backs of hands
• May look like a firm red nodule, a flat lesion with a scaly surface, or a sore that heals and then reopens

Melanoma

The most dangerous form of skin cancer, melanoma can develop from existing moles or appear as new dark spots on the skin.

Key characteristics:

• Can spread rapidly to other parts of the body if not treated early
• Often appears as a new spot on the skin or a spot that changes in size, shape, or color
• May be identified using the ABCDE rule: Asymmetry, Border irregularity, Color variation, Diameter larger than 6mm, Evolving over time

Merkel Cell Carcinoma

A rare but aggressive skin cancer that appears as a flesh-colored or bluish-red nodule, often on the face, head, or neck.

Key characteristics:

• Tends to grow quickly and has a high risk of spreading
• More common in older people and those with weakened immune systems
• Usually appears as a painless, firm, shiny lump that can be skin-colored, red, blue, or purple

Risk Factors

Several factors can increase your risk of developing skin cancer:

• UV Exposure: Excessive exposure to ultraviolet (UV) radiation from the sun or tanning beds.
• Fair Skin: People with lighter skin tones have less melanin to protect their skin.
• Family History: A personal or family history of skin cancer increases your risk.
• Age: The risk of skin cancer increases with age due to cumulative sun exposure.
• Weakened Immune System: Conditions or medications that suppress your immune system.
• History of Sunburns: Severe sunburns, especially during childhood, significantly increase risk.

Early Detection Saves Lives

Regular skin checks and prompt attention to suspicious spots can help detect skin cancer early.

DermaVision can support skin monitoring, but AI screening is not a diagnosis and cannot replace qualified medical care.