What are less common symptoms of paroxysmal nocturnal hemoglobinuria (PNH)?

Updated: May 20, 2021
  • Author: Emmanuel C Besa, MD; Chief Editor: Sara J Grethlein, MD, FACP  more...
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Other symptoms of PNH include esophageal spasms that occur in the morning and, like the dark-colored urine, clear up later in the day. In males, erectile dysfunction can occur concomitantly with hemoglobinuria; the cause of this is unknown.

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