Moles

What are Moles?

Moles (also called nevi) are common skin growths made up of pigment-producing cells (melanocytes). They can appear anywhere on the body and are usually brown, black, or skin-colored. Most moles are harmless, but some can develop into melanoma, a type of skin cancer.

Causes

• Genetics – inherited traits influence mole development.
• Sun exposure – UV rays can trigger new moles and darken existing ones.
• Hormonal changes – pregnancy, puberty, or hormone therapy can cause moles to appear or change.
• Skin trauma – occasionally a mole develops after injury.

Symptoms / Appearance

• Small, round or oval growths on the skin.
• Color: brown, black, tan, or skin-colored.
• Can be flat or raised, smooth or rough.
• Usually less than 6 mm in diameter.
• New, changing, or irregular moles may indicate a problem (see ABCDE rule).
• ABCDE Rule for Monitoring Moles:
• A – Asymmetry: One half unlike the other.
• B – Border: Irregular, blurred, or jagged edges.
• C – Color: Multiple colors or uneven pigmentation.
• D – Diameter: Larger than 6 mm (pencil eraser).
• E – Evolving: Changes in size, shape, color, or symptoms (itching, bleeding).

Treatments

Professional Options

• Monitoring – regular check-ups for harmless moles.
• Surgical removal (excision) – for cosmetic reasons, discomfort, or suspicious moles.
• Shave removal – for raised, benign moles.
• Laser removal – selected cases, mainly for cosmetic purposes.

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At-Home Care

• Regular skin checks – self-monitor for changes using the ABCDE rule.
• Sun protection (SPF 30+) – reduces risk of new moles and malignant transformation.
• Avoid attempting home removal – risk of infection or scarring.

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Prevention

• Use daily sunscreen and protective clothing.
• Limit sun exposure during peak hours (10 am–4 pm).
• Avoid tanning beds.
• Regularly monitor moles for changes.
• See a dermatologist for any new, changing, or suspicious moles.

FAQs

Q1. Are all moles dangerous?
No, most moles are harmless, but any changing or irregular mole should be examined.

Q2. Can moles disappear on their own?
Some moles may fade over time, but most remain stable.

Q3. Can I remove a mole at home?
No – DIY removal can cause infection, scarring, and missed diagnosis of cancer.

Q4. How often should I check my moles?
Monthly self-checks and annual dermatology reviews are recommended.

Q5. What causes a mole to become cancerous?
UV exposure, genetics, and hormonal changes increase the risk, though most moles remain benign.