Skin Cancer: Detect Early, Treat Right

Skin cancer is one of the most common cancers worldwide, especially in areas with intense sunlight such as equatorial regions. Ultraviolet (UV) radiation is a major risk factor. Being aware of symptoms and preventive measures can significantly reduce complications and mortality.

Types of Skin Cancer

There are three major types:

1. Basal Cell Carcinoma (BCC)

The most common type. It grows slowly and rarely spreads, but can invade nearby tissues. Typically appears as a clear bump or persistent sore lasting more than 2–3 weeks.

2. Squamous Cell Carcinoma (SCC)

The second most common type, often caused by cumulative UV exposure. Appears in sun-exposed areas like the face, hands, or ears. Often presents as a scaly, bleeding sore that doesn’t heal.

3. Melanoma

The most dangerous type. Though less common, it can rapidly spread to other organs. Often starts as a mole that changes in shape, size, or color.

Risk factors

UV exposure (sunlight or tanning beds)
Family history of skin cancer
Fair skin, blue or green eyes, blonde or red hair
Weakened immune system
Exposure to chemicals such as arsenic or certain drugs

Signs and Observation

Sores that don't heal after 2–3 weeks
Moles that change shape, color, or size
Bumps that bleed, itch, or hurt
Abnormal dark spots (use the ABCDE rule)

Diagnosis Methods

Physical examination by a dermatologist
Dermatoscope-assisted skin examination
Biopsy to examine cells under a microscope

Treatment Options

Treatment depends on the type, size, location, and stage:

1. Surgery

Excisional Surgery: Removes the tumor and surrounding tissue
Mohs Surgery: Removes and examines skin layers progressively—ideal for the face

2. Cryotherapy

Uses liquid nitrogen to destroy cancer cells—suitable for early-stage cancers

3.Radiation Therapy

Used when surgery isn’t viable or as adjuvant therapy

4. Medication

Topical Chemotherapy: Uses creams or gels
Immunotherapy: Boosts the immune system to fight cancer
Targeted Therapy & Checkpoint Inhibitors: For advanced melanoma

Skin Cancer Prevention

Avoid sun exposure between 10 a.m. and 4 p.m.
Wear long sleeves, hats, and sunglasses
Use sunscreen with SPF 30 or higher
Avoid tanning beds
Perform monthly self-exams and see a dermatologist annually

Current Trends and Research

Recent advances in immunotherapy, especially immune checkpoint inhibitors (e.g., pembrolizumab, nivolumab), have improved survival in advanced melanoma.

AI-based skin imaging tools are also being developed for accurate, dermatologist-level diagnosis.

summarize

Skin cancer is highly treatable if detected early. Protecting your skin, minimizing risk factors, and undergoing regular checkups are key to prevention. Public education and community awareness are essential to reducing the burden of skin cancer globally.