Different Types of Dermatological Moles

Moles, or nevi, are common skin growths that most people have at some point in their lives. While they come in various shapes, sizes, and colours, understanding the types of benign moles can help you differentiate between harmless growths and those that might require medical attention. This blog will explore the different types of benign moles, their characteristics, and when you should seek advice from a doctor.

Common Types of Moles

1. Congenital Moles

Description 

Congenital moles are moles that are present at birth. They can vary greatly in size, shape, and colour.

Characteristics

• Can be small, medium, or large.
• May be flat or raised.
• Can range in colour from flesh-coloured growths to light brown and black.

Risks

Larger congenital moles of dark colour are thought to have a slightly higher risk of developing into melanoma, a type of skin cancer.

When to Seek Medical Advice

Regular check-ups are recommended for large congenital moles due to their increased risk of malignancy.

2. Acquired (Non-congenital) Moles

Description

Acquired moles develop after birth, usually in childhood or early adulthood. They are the most common type of mole.

Characteristics

• Typically small (usually 5mm – 10mm in diameter).
• Round or oval in shape.
• Can be flat or raised.
• Can be pigmented (Dark) or skin-coloured.

Risks

Most acquired moles are harmless, but changes in size, shape, or colour should be monitored.

When to Seek Medical Advice

If an acquired mole changes rapidly, itches, bleeds, or becomes painful, consult a dermatologist.

3. Atypical Moles (Dysplastic Nevi)

Description

Atypical moles are unusual-looking moles that may resemble melanoma but are benign.

Characteristics

• Larger than common moles, often larger than 6mm.
• Irregular shape with indistinct borders.
• Varied coloration, including a mix of tan, brown, red, and pink.

Risks

People with multiple atypical moles have a higher risk of developing melanoma.

Atypical moles should be monitored closely for changes.

When to Seek Medical Advice

Regular skin checks are recommended for individuals with atypical moles, especially if there’s a family history of skin cancer.

4. Spitz Nevus

Description

Spitz nevus is a benign mole that typically appears in childhood but can also occur in adults.

Characteristics

Usually pink, red, or brown.

Dome-shaped and raised.

Smooth surface.

Risks

Although benign, Spitz nevi can sometimes resemble melanoma, so proper diagnosis is important.

When to Seek Medical Advice

Any new, rapidly growing mole should be evaluated by a dermatologist to rule out malignancy.

5. Halo Nevus

Description

Halo nevus is a mole surrounded by a depigmented ring, or “halo,” of skin.

Characteristics

Central mole can be brown or black.

Surrounding skin loses pigment, creating a white halo.

Risks

Typically benign and can be a sign of the body’s immune response attacking the mole.

When to Seek Medical Advice

Although generally harmless, any changes in the central mole should be monitored.

6. Blue Nevus

Description

Blue nevus is a mole that appears blue due to the deep location of pigment cells in the skin.

Characteristics

Small and round.

Blue or blue-black in colour.

Smooth surface.

Risks

Usually benign, but rare cases can develop into melanoma.

When to Seek Medical Advice

If the blue nevus changes in size or colour, consult a dermatologist or Skin Cancer GP.

Monitoring and Management of Moles

Regular self-examinations and dermatologist visits are crucial for monitoring moles. The ABCDE rule can help identify suspicious moles:

• Asymmetry: One half of the mole does not match the other half.
• Border: Edges are irregular, scalloped, or poorly defined.
• Colour: Colour is not uniform and may include shades of brown, black, red, white, or blue.
• Diameter: Larger than 6mm (about the size of a pencil eraser).
• Evolving: Changes in size, shape, colour, or elevation, or new symptoms such as bleeding, itching, or crusting.

Conclusion

Understanding the different types of dermatological moles and their characteristics can help you keep an eye on your skin health. 

While most moles are benign, being vigilant about any changes and seeking professional advice when necessary can ensure early detection and treatment of potential skin issues. 

Regular skin checks, both self-examinations and professional evaluations, are essential in maintaining healthy skin and preventing skin cancer.Dr. Jadoon emphasises the importance of a tailored approach, ensuring that results not only enhance but also harmonise with the patient’s overall facial features.

Disclaimer:

All cosmetic procedures carry risks. These include: swelling, bruising, infection, allergic reaction, asymmetrical results, vascular injury, nerve trauma, visual disturbances, psychological trauma and grievous body harm. For more information, please visit our website site and find the link to the “ Risks & Complications” page at the bottom of our website home page on medaesthetics.com.au. Before / After images are of actual DermAesthetics/ Medaesthetics patients as well as stock images provided by the medical product suppliers. These images are for reference purpose only. Individual results may vary. Please obtain expert opinion from at least two different medical providers before undergoing any cosmetic treatment.