Salt and water disorders marked by severe thirst and heavy urination.

Diabetes occurs when the body cannot control how it treats the fluid. The condition is caused by hormonal imbalance and is not related to diabetes.

In addition to excessive thirst and severe urination, some indications may include getting up at night to urinate, or deepening the bed.

Depending on the type of disease, treatment options may include hormone therapy, low-salt foods, and plenty of fluids.

Diabetes insipidus (die-uh-BEE-teze in SIP-uh-dus) is a rare disorder that causes fluid imbalances in the body. These imbalances make you very thirsty even if you have been drinking something. It also leads you to produce large amounts of urine. While the terms "diabetes insipidus" and "diabetes" sound similar, they are not related. Diabetes mellitus - which can occur as type 1 or type 2 - is a common form of diabetes. There is no cure for diabetes insipidus. But treatment can ease your thirst and reduce your urine output.