Agraphesthesia

What it means

Impaired ability to recognize letters or numbers drawn by an examiner's fingertip on the patient's skin (the patients eyes are closed or covered throughout this examination).

Rare diseases that can present with this1

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