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🩺 Medically reviewed by the Health Decoded Guide Editorial Team · Last reviewed: July 2026
🔍 Quick Summary
Warts are small, rough skin growths caused by a virus.
They are common, contagious, and usually harmless.
1️⃣ Introduction
Warts are non-cancerous growths on the skin.
• caused by human papillomavirus (HPV)
• can appear on hands, feet, or other areas
• common in children and young adults
👉 Warts are harmless but can spread if untreated.
2️⃣ How it happens
The virus enters through small breaks in the skin.
• infects the top layer of skin
• causes excess skin growth
• leads to rough, raised bumps
👉 Direct contact helps the virus spread.
3️⃣ Types
• Common warts
- rough, raised bumps
- often on hands and fingers
• Plantar warts
- occur on soles of the feet
- may be painful when walking
• Flat warts
- smooth, smaller
- often on face or arms
👉 Different types appear in different locations.
4️⃣ Common causes
• Direct contact
- touching infected skin
• Indirect contact
- shared surfaces (e.g. floors, towels)
5️⃣ Symptom
• small rough growths
• skin-colored or slightly darker
• may have black dots (tiny blood vessels)
👉 These are caused by viral stimulation of skin cells.
6️⃣ Associated symptoms
• mild pain (especially on feet)
• discomfort when pressure applied
• spreading to nearby skin
• cosmetic concern
👉 Often more noticeable than harmful.
7️⃣🩺When it becomes concerning 🚨
• rapid spread
• pain or bleeding
• uncertain diagnosis
👉 These may indicate:
• need for treatment
• other skin condition
8️⃣ Management / treatment
• topical treatments (salicylic acid)
• cryotherapy (freezing)
• minor procedures if persistent
9️⃣ Diagnosis
• clinical examination
• based on typical appearance
• rarely needs tests
👉 Diagnosis is usually straightforward.
🟢 Important message
Warts are common and usually harmless.
👉 Many resolve over time, but treatment helps speed recovery and reduce spread.
FAQ
• Are warts contagious?
Yes—they spread through contact.
• Do they go away on their own?
Many do, but it may take months.
🔗 Related Health Topics
• Skin infections
• Molluscum contagiosum
• Fungal infections
• Common Childhood Rash
• Impetigo
📚 Medical References
• National Health Service (NHS). Warts and verrucas.
• Centers for Disease Control and Prevention (CDC). About Human Papillomavirus (HPV).
• Mayo Clinic. Common warts.
• National Institute for Health and Care Excellence (NICE). Warts and verrucae.
• American Academy of Dermatology (AAD). Warts: Diagnosis and treatment.
• DermNet NZ. Viral wart.
⚠️ Medical Disclaimer
This article is for educational purposes only and does not replace professional medical advice.
If warts persist or worsen, consult a healthcare professional.