Paediatric Dermatology

Congenital Melanocytic Naevus

A pigmented birthmark present from birth -- most are harmless, though size and monitoring approach vary.

Noticed a pigmented birthmark present since birth?

An evaluation classifies the naevus by size and discusses an appropriate monitoring plan.

A naevus that's changing or a parent has concerns about?

Any change in a congenital naevus over time is worth a prompt evaluation.

What Is It?

A congenital melanocytic naevus is a pigmented birthmark present from birth, ranging widely in size from small spots to larger areas of pigmented skin. Most small and medium congenital naevi are monitored over time as part of routine paediatric skin care, with an appropriate follow-up schedule based on size and appearance.

Larger congenital naevi carry a somewhat higher, though still generally low, long-term monitoring consideration, and are discussed individually in terms of an appropriate follow-up plan, and occasionally surgical options, based on their specific size and features.

Risk Factors

Present from birth by definition
Larger naevi carry a higher, though still generally low, long-term monitoring consideration

Symptoms

Pigmented patch or growth present since birth
Can vary widely in size, from small to covering a large body area
May have increased hair growth within the naevus

Treatment

Monitoring: Regular monitoring appropriate to the size and features of the naevus, adjusted as your child grows.
Surgical Consideration: For larger naevi or those with specific features, surgical options discussed and coordinated as appropriate.

Learn more about Birthmark Evaluation →