Hemihypertrophy

What is Hemihypertrophy?

Hemihypertrophy is characterized by a greater than normal (5%) difference in size between the right and left sides of the body. The difference can be in only one finger, one limb, half the face, or an entire half of the body, including the tongue and the internal organs, or any variation in between.

Hemihypertrophy may also involve other differences. The skin is often thicker and there may be acne on only one side of the face. More hair may grow on the larger side of the head. In rare cases, children can have crossed hemihypertrophy, where one leg and the opposite arm are larger than their partners.


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