hormonal and metabolic disorders
Syndrome of Inappropriate Secretion of Antidiuretic Hormone (SIADH)
Causes of SIADH
Many conditions increase the risk of developing SIADH. SIADH may result whenvasopressinis produced outside the pituitary gland, as occurs in some lung and other cancers. SIADH is common among older adults and is fairly common among people who are hospitalized. SIADH has a long list of possible causes that typically require additional tests to uncover. 