Skin Cancer | Symptoms, Causes and Prevention Methods

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Skin Cancer
Skin cancer is one of the most common types of cancer worldwide. Prolonged sun exposure, genetic factors, and environmental influences can contribute to its development. Early diagnosis and appropriate treatment significantly increase the chances of success. In this article, we will cover all the essential information about skin cancer in detail.

What is Skin Cancer?
Skin cancer is a type of cancer that occurs when skin cells grow uncontrollably. The skin, which is the body’s first line of defense against external factors, can sometimes suffer cellular damage and become cancerous. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. While skin cancer usually appears in sun-exposed areas, it can develop anywhere on the body.
What Are the Types of Skin Cancer?
Skin cancer can occur in various forms, depending on which type of skin cells it originates from:
- Basal Cell Carcinoma (BCC): This is the most common type of skin cancer. It generally progresses slowly and rarely spreads. It typically develops in sun-exposed areas such as the face and neck.
- Squamous Cell Carcinoma (SCC):This type begins in the cells that form the skin's surface. It can be more aggressive than other types and has a risk of spreading.
- Melanoma: Melanoma is the most dangerous form of skin cancer. If not detected early, it can rapidly spread to other parts of the body. It often originates from changes in existing moles.
- Merkel Cell Carcinoma: Though rare, this is an aggressive form of skin cancer that spreads quickly. It begins in neuroendocrine cells located beneath the skin.
Other rare types include skin lymphomas and Kaposi’s sarcoma.
What Causes Skin Cancer?
The primary cause of skin cancer is exposure to ultraviolet (UV) rays, but it’s not the only factor:
- Excessive sun exposure: Damages skin cell DNA and leads to mutations.
- Use of tanning beds: Artificial UV rays are just as harmful as natural sunlight.
- Fair skin: People with less melanin have less natural protection.
- Genetic predisposition: Individuals with a family history of skin cancer are at higher risk.
- Weakened immune system: Especially in individuals with suppressed immunity after organ transplants.
- Exposure to harmful chemicals: Prolonged exposure to substances like arsenic increases cancer risk.

What Are the Symptoms of Skin Cancer?
Skin cancer usually presents with visible signs. Being aware of these symptoms is crucial for early detection:
- Non-healing wounds: Open sores that do not heal within 3–4 weeks.
- Changing moles: Particularly significant in identifying melanoma.
- Itching, bleeding, or crusting: Important signs in suspicious moles or lesions.
- Raised, shiny bumps: May appear pearly and indicate basal cell carcinoma.
- Red, firm nodules: Often associated with squamous cell carcinoma.
If you notice any of these symptoms, a dermatological evaluation should not be delayed.
How Can You Prevent Skin Cancer?
Taking simple but effective steps in your daily life can help prevent skin cancer:
- Sun protection: Avoid going outside when the sun is strongest (10:00 AM to 4:00 PM).
- Use sunscreen: Choose products with at least SPF 30 and broad-spectrum (UVA/UVB) protection.
- Wear protective clothing: Use wide-brimmed hats, long-sleeved clothing, and sunglasses.
- Avoid tanning beds: Artificial UV rays significantly increase skin cancer risk.
- Perform regular skin checks: Monitor new moles or changes in existing ones.
These habits not only protect your skin health but also greatly reduce the risk of skin cancer.

How is Skin Cancer Treated?
The success of skin cancer treatment depends on early detection and the appropriate treatment plan. Treatment methods include:
- Surgical Intervention: The most common method. The cancerous tissue and surrounding area are removed. In melanoma cases, a wider area may be excised.
- Mohs Micrographic Surgery: Used particularly in sensitive areas like the face. Cancerous tissue is removed layer by layer, and each layer is examined under a microscope.
- Radiotherapy: Preferred in patients who are not suitable for surgery or in cases where the cancer has spread.
- Chemotherapy: Used in advanced melanoma or when other treatments are ineffective.
- Immunotherapy / Targeted Therapy: Especially effective for metastatic melanoma. These treatments boost the immune system or target cancer cells directly.
When diagnosed early, skin cancer is highly treatable. Regular check-ups and awareness are vital.
Skin cancer can be successfully managed with early diagnosis and proper treatment. Taking preventive measures and not neglecting regular skin checks is the most effective way to fight this disease. Raising awareness about skin cancer strengthens not only individual but also public health. Remember, your skin health is in your hands!
Skin Cancer Frequently Asked Questions (FAQ)
No, skin cancer is not contagious. It does not spread from person to person through contact. It develops due to genetic, environmental, and lifestyle factors.
No, not all moles indicate skin cancer. However, moles that change in shape, color, or size should definitely be evaluated by a dermatologist.
Skin cancer is more common in people over 50, but it can also occur at younger ages. The use of tanning beds and intense sun exposure has led to an increase in cases among young people.
Yes. The artificial UV rays used in tanning beds can damage skin cell DNA and significantly increase the risk of skin cancer.