Overview

Diabetes insipidus (die-uh-BEE-teze in-SIP-uh-dus) is an uncommon disorder that causes an imbalance of fluids in the body. This imbalance leads you to produce large amounts of urine. It also makes you very thirsty even if you have something to drink.

While the terms "diabetes insipidus" and "diabetes mellitus" sound similar, they're not related. Diabetes mellitus — which involves high blood sugar levels and can occur as type 1 or type 2 — is common and often referred to simply as diabetes.

There's no cure for diabetes insipidus. But treatments can relieve your thirst and decrease your urine output and prevent dehydration.