Back to Ask the Diabetes Team Ask the Diabetes Team

From Cypress, California, USA:

My doctor is questioning the possibility that I may have both Type 1 and Type 2 diabetes. Is this possible?

My C-peptide verifies that I am Type 1, however, my resistance to even my injected insulin along with my positive results of combining insulin with Glucophage [metformin, a pill for Type 2 diabetes] is what is leading him to this hypothesis. What is your opinion?

Is there a test specifically for type 2 diabetes?


It is theoretically possible that you have both Type 1A or autoimmune diabetes together with some form of Type 2 diabetes; but I have never encountered a case. The best way to help resolve your diagnostic problem would be to ask your doctor about getting an antibody test done. The number to call for details is 1-800-425-8361. A positive test would indicate Type 1A diabetes; but a negative one would not exclude it if you have had diabetes for more than a year.

The precise diagnosis is not nearly as important as doing all you can to maintain really good blood glucose control.


Original posting 27 Jun 1999
Posted to Diagnosis and Symptoms


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

Last Updated: (none)
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.