Question: Is epidermal nevus inherited ?
Answer: This condition is generally not inherited but arises from mutations in the body's cells that occur after conception. This alteration is called a somatic mutation. Occasionally, the somatic mutation occurs in a person's reproductive cells (sperm or eggs) and is passed to the next generation. An inherited FGFR3 gene mutation is found in every cell in the body, which results in skeletal abnormalities rather than epidermal nevus.
Source: GHR