Table 20 Diagnostic criteria in trigeminal neuralgia [2]

A. Recurrent paroxysms of unilateral facial pain in the distribution(s) of one or more divisions of the trigeminal nerve, with no radiation beyond, and fulfilling criteria B, C and D

B. Pain has all of the following characteristics:

 1. lasting from a fraction of a second to 2 min

 2. servere intensity

 3. electric shock-like, shooting, stabbing or sharp in quality

C. Precipitated by innocuous stimuli within the affected trigeminal distribution

D. Not better accounted for by another ICHD-3 diagnosis