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Skin Cancer: Types, Signs and Prevention

Reviewed by medical AI · Updated: March 29, 2026

Guide to basal cell, squamous cell, and melanoma skin cancers — signs, risk factors and treatment.

In this article

  1. 1.Overview
  2. 2.Common Causes
  3. 3.Related Symptoms
  4. 4.Related Conditions
  5. 5.Frequently Asked Questions
  6. 6.Related Articles

vHospital · Health Education

Skin cancer is the most common cancer worldwide. The three main types are basal cell carcinoma (rarely spreads), squamous cell carcinoma (can spread), and melanoma (most dangerous).

Primary risk factor is UV radiation from sunlight and tanning beds. Use the ABCDE rule for melanoma: Asymmetry, Border irregularity, Color variation, Diameter over 6mm, Evolving lesion.

See also: Living with Psoriasis: Skin Care and Treatment

Prevention: broad-spectrum SPF 30+ sunscreen daily, protective clothing, avoid peak UV hours (10am-4pm), no tanning beds, monthly self-skin exams.

Treatment includes excision, Mohs surgery, immunotherapy, and targeted therapy. When detected early, skin cancers have excellent cure rates.

See also: Eczema Management: Triggers, Treatment and Skin Care

Common Causes

  • →Infections and inflammation — bacterial, viral, or autoimmune triggers activate skin rash
  • →Metabolic disturbances — hormonal imbalances, nutrient deficiencies, or blood sugar changes
  • →Structural or vascular causes — tissue damage, nerve compression, or circulatory problems
  • →Psychological factors — stress, anxiety, and depression can produce measurable physical skin rash
  • →Underlying conditions such as Psoriasis, Atopic Dermatitis, Eczema frequently present with skin rash as a core feature

Frequently Asked Questions

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✓Medically Reviewed— vHospital Editorial Team · 2024–2025
Sources:WHOPubMedUpToDateNICECDC

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⚠️ This content is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.