Narrow nose

What it means

Interalar distance more than 2 SD below the mean for age, or alternatively, an apparently decreased width of the nasal base and alae.

Note: a small nose has both decreased height and a decreased width. These should be coded separately.

Rare diseases that can present with this6

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: Decreased nasal width · Thin nose