Abnormal position of hair whorl

What it means

Hair growth from a single point on the scalp in any location other than lateral to the midline and close to the vertex of the skull.

Placement of hair whorl should be described as parietal, vertex, eccentric, etc. In addition, the number of hair whorls should be noted. Five percent of the population has two whorls.

Rare diseases that can present with this2

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category