Quotation from: Manual of Surgery

Written by: Alexander Miles and Alexis Thomson

_Treatment._--In view of the frequency with which subcutaneous and mixed
naevi disappear spontaneously, interference is only called for when the
growth of the tumour is out of proportion to that of the child, or when,
from its situation--for example in the vicinity of the eye--any marked
increase in its size would render it less amenable to treatment.