Back to Ask the Diabetes Team Ask the Diabetes Team

From London, Middlesex, England:

Why does type 1 diabetes cause initial dehydration? What is the mechanism in my friend that is causing excessive urination?


High sugar levels force the body to try to counterbalance osmotic load. When sugars are high, the kidneys try to excrete the excess and this comes out in the urine, along with salt (mostly sodium but also lots of other minerals directly or indirectly) and water. Thus, excess urination, night time urination and sometimes enuresis. Excess thirst is a normal response to the excess urination. The body gets into trouble when vomiting or other reasons prevent keeping up with these losses and thus dehydration ensues.


Original posting 7 Nov 2004
Posted to Other


  Back to Ask the Diabetes Team Return to the Top of This Page

Last Updated: Tuesday April 06, 2010 15:10:00
This Internet site provides information of a general nature and is designed for educational purposes only. If you have any concerns about your own health or the health of your child, you should always consult with a physician or other health care professional.

This site is published by T-1 Today, Inc. (d/b/a Children with Diabetes), a 501c3 not-for-profit organization, which is responsible for its contents. Our mission is to provide education and support to families living with type 1 diabetes.
By using this site, you agree to our Terms of Use, Legal Notice, and Privacy Policy.
© Children with Diabetes, Inc. 1995-2018. Comments and Feedback.