Mayo Clinic Care Network Content
Articles

Diabetes symptoms: When diabetes symptoms are a concern

Greater thirst and more urination

Being very thirsty and urinating often are common diabetes symptoms. In people who have diabetes, extra sugar — which also is called glucose — builds up in the blood. This forces the kidneys to work overtime to filter and absorb the extra sugar.

When the kidneys can't keep up, extra sugar goes into the urine. And it takes along fluids from the body's tissues. That causes dehydration, which usually leads to a feeling of thirst. Drinking more fluids to quench the thirst then leads to more urination.