Who is at highest risk for postherpetic neuralgia (PHN) in herpes zoster (shingles)?

Updated: Feb 11, 2021
  • Author: Camila K Janniger, MD; Chief Editor: Dirk M Elston, MD  more...
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The reason why some patients with zoster experience PHN and others do not is not fully understood, but it is clear that patients who are older (> 60 years), particularly those who are debilitated or arteriosclerotic, are affected far more frequently than younger patients are. In addition, PHN is observed more frequently after cases of herpes zoster ophthalmicus (HZO) and in instances of upper-body dermatomal involvement.

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