People who have diabetes generate excessive amounts of urine, which results in constant urination and thirst. It is a vicious cycle. In diabetes, the body does not correctly control water balance. Diabetes insipidus can result in dangerous dehydration if the person does not ingest more liquid. The causes involve Central DI, which is the consequence of damage to the hypothalamus or pituitary glands.
Because these glands play a role in the production, storage, and distribution of the hormone, it can upset the system, and this causes the kidneys to filter too much fluid out of the blood, which causes excess urination. There also becomes an imbalance of electrolytes in your blood.
The Central DI glands can be harmed by head injury, surgery, infection, inflammation, or brain tumors. Central DI can be triggered by a genetic defect that results in problems with vasopressin production in certain instances. It is also possible to have Central DI without any discernible cause. Some of the diabetes insipidus include fatigue, dehydration, nausea, loss of appetite, and muscle cramps.