CMN is an abbreviation of Congenital Melanocytic Naevus, a type of birthmark that may appear in new born babies. Use the links below to find out more about the condition.

What is CMN?
Is CMN a rare disease?
What does CMN look like?
Problems with CMN
What causes CMN?
CMN is a Mosaic Disorder
CMN Syndrome
Expressions of CMN
CMN complexities
Questions about treatment
Sun protection
Support and Research