Skin cancer is one of the most common types of cancer worldwide, but when caught early, it is highly treatable. Being aware of skin cancer symptoms can help individuals seek timely medical advice and increase the chances of successful treatment.

Skin cancer occurs when abnormal skin cells grow uncontrollably due to DNA damage, often caused by ultraviolet (UV) exposure from the sun or tanning beds. There are several types of skin cancer, including melanoma, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC)—each with its own set of warning signs.

Common Skin Cancer Symptoms

• New growths or moles that appear suddenly.


• Changes in size, shape, or color of existing moles.


• Sores that do not heal after several weeks.


• Itching, tenderness, or pain in a mole or skin spot.


• Bleeding or crusting skin lesions.

Melanoma Symptoms

Melanoma is the most dangerous form of skin cancer because it can spread quickly to other parts of the body. Dermatologists recommend using the ABCDE Rule to identify suspicious moles:

• A – Asymmetry: One half of the mole does not match the other.


• B – Border: Edges are irregular, blurred, or jagged.


• C – Color: Multiple shades of brown, black, red, or white are present.


• D – Diameter: Larger than 6mm (about the size of a pencil eraser).


• E – Evolving: Changes in size, shape, or symptoms over time.

Basal Cell Carcinoma (BCC) Symptoms

• Pearly or waxy bumps on the skin.


• Flat, flesh-colored, or brown scar-like lesions.


• Bleeding or oozing sores that return after healing.

SquamousCell Carcinoma (SCC) Symptoms

• Firm, red nodules on the skin.


• Flat lesions with a scaly, crusted surface.


• Sores in sun-exposed areas that do not heal.

Risk Factors for Skin Cancer

• Fair skin, light hair, and light eyes.


• History of frequent sunburns.


• Extended sun exposure without protection.


• Regular use of tanning beds.


• Many moles or unusual skin growths.


• Family history of skin cancer.

Preventing Skin Cancer

• Wear broad-spectrum sunscreen with SPF 30 or higher.


• Avoid tanning beds and excessive sun exposure.


• Wear protective clothing, hats, and sunglasses.


• Check your skin monthly for new or changing spots.


• Schedule annual skin exams with a dermatologist.

Trusted Resources & Listings

• American Cancer Society – Skin Cancer Information – Comprehensive guide on symptoms, diagnosis, and treatment.


• Skin Cancer Foundation – Prevention tips, self-exam guides, and dermatologist resources.


• Centers for Disease Control and Prevention (CDC) – Skin Cancer – U.S. health statistics and public awareness campaigns.


• Mayo Clinic – Skin Cancer Symptoms – Detailed overview of causes and signs.


• National Cancer Institute – Skin Cancer – Research-based insights and treatment guidelines.

Final Thoughts

Recognizing skin cancer symptoms early is crucial for effective treatment. Any suspicious mole, lesion, or skin change should be evaluated by a dermatologist immediately. While not all skin changes indicate cancer, it’s better to be safe and have them checked.

By staying vigilant and practicing sun safety, you can significantly reduce your risk of developing skin cancer. Remember—the earlier it is found, the better the outcome.