Ridged nail

What it means

Longitudinal, linear prominences in the nail plate.

There may be only one, or several ridges. The affected digits should be specified.

Rare diseases that can present with this11

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: Longitudinal ridging · Nail ridging · Ridged nails