Fair hair

What it means

A lesser degree of hair pigmentation than would otherwise be expected.

For instance, in Angelman syndrome, reduced expression of the gene OCA2 is associated with light-colored hair and fair skin, such that affected children often have noticeably fairer hair than their unaffected relatives.

Rare diseases that can present with this3

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

Also called: Fair hair color · Fair hair colour · Flaxen hair color · Flaxen hair colour · Light colored hair · Light coloured hair · Sandy hair color · Sandy hair colour