Overview
The skin is the largest organ of our body. It constantly replaces old cells with new ones, but sometimes this process is disrupted due to external factors such as overexposure to UV rays or hormonal changes.
In such cases, the cells begin to multiply rapidly, forming either non-cancerous or cancerous growths. Skin cancer is a fast-spreading type of cancer that can spread to other tissues or parts of the body if not detected early. It can also develop in areas not directly exposed to sunlight.
Types of Skin Cancer
1. Basal Cell Carcinoma
This is the most common type of skin cancer and begins in the upper layers of the epidermis.
2. Squamous Cell Carcinoma
Commonly found on sun-exposed body parts like the face, neck, and hands. People with darker skin tones may develop it in areas not exposed to the sun.
3. Melanoma
Develops from melanocytes, the pigment-producing cells of the skin. Some benign moles can become cancerous and may appear on the chest, back, or legs.
Causes and Risk Factors of Skin Cancer
- UV Rays Exposure: Ultraviolet radiation damages the DNA in skin cells.
- Fair Skin: Less melanin means less protection from UV radiation.
- History of Sunburns: Blistering sunburns increase risk in later years.
- Radiation Exposure: Previous radiation treatments may raise risk.
- Personal History: People who have had skin cancer once are more likely to develop it again.
Symptoms of Skin Cancer
- Purple or red patches on the skin
- Firm, shiny nodules on or below the skin or in hair follicles
- Hard, painless nodules on the skin, especially on eyelids
- Unusual growth or changes in existing moles
- Skin sores or lesions that don’t heal
Prevention of Skin Cancer
- Avoid tanning beds.
- Limit direct sun exposure, especially between 10 a.m. and 4 p.m.
- Apply sunscreen and lip balm with SPF 30 or higher.
- Wear hats and sunglasses when outdoors.
Diagnosis of Skin Cancer
- Skin Biopsy: A small sample of skin is tested in the lab to confirm cancer.
- Imaging Tests: CT scans, X-rays, and MRIs may be used to check if cancer has spread to other organs.
- Blood Tests: Elevated LDH levels may indicate advanced melanoma stages.
Treatment of Skin Cancer
1. Surgery
Removes the tumor along with some surrounding healthy tissue to ensure all cancer cells are removed.
2. Radiation Therapy
Uses high-energy X-rays or protons to destroy cancer cells or stop their growth.
3. Chemotherapy
Uses drugs to kill or prevent the growth of cancer cells. Administered orally or intravenously.
4. Photodynamic Therapy
Combines a drug and light exposure to kill cancer cells with minimal damage to healthy skin.
5. Immunotherapy
Boosts the body’s immune system to recognize and destroy cancer cells effectively.
6. Chemical Peel
Applies a chemical solution to dissolve and remove the top layers of damaged skin, improving appearance and reducing risk.
Takeaway
Skin cancer is highly treatable if detected early. Awareness and prevention through protective measures can greatly reduce your risk.
Regular checkups, proper skincare, and prompt medical consultation are key to maintaining healthy skin and preventing complications.