Does hypertrichosis run in families?

Dr. Jeanne Morrison, PhD
Family Practitioner
Hypertrichosis can be hereditary. It can be generalized (all over the body) or localized (just in certain areas). There are two forms of the generalized congenital condition. One is congenital hypertrichosis lanuginosa and the other is universal congenital hypertrichosis. The first is much rarer than the second. There are four different versions of the congenital localized condition. They are melanocytic nevi, Becker's nevus, lumbrosacral hypertrichosis, and congenital erythropoietic porphyria, with each condition having a different area of appearance or age when it occurs.

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