1. Health
You can opt-out at any time. Please refer to our privacy policy for contact information.



Updated January 14, 2008

Definition: The need to urinate frequently at night. This is often defined as getting up more than twice during the time that the person would normally be sleeping. Nocturia is a form of bladder dysfunction which is an extremely common symptom of multiple sclerosis (MS).

©2014 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health
information: verify here.