Syndrome of Inappropriate Antidiuretic Hormone Secretion Symptoms & Causes

LIke ThisLIke ThisLIke ThisLIke ThisLIke This


What causes SIADH?

SIADH tends to occur in people with heart failure, or in people with a diseased hypothalamus (the part of the brain that works directly with the pituitary gland to produce hormones).

In other cases, a certain cancer (elsewhere in the body, often in the lungs) may produce the antidiuretic hormone. SIADH may also be caused by:

What are the symptoms of SIADH?

While each child may experience symptoms differently, in more severe cases of SIADH, symptoms may include:

  • nausea
  • vomiting
  • irritability
  • personality changes, such as combativeness, confusion, and hallucinations
  • seizures
  • stupor
  • coma

The symptoms of SIADH may resemble other problems or medical conditions.

We are grateful to have been ranked #1 on U.S. News & World Report's list of the best children's hospitals in the nation for the third year in a row, an honor we could not have achieved without the patients and families who inspire us to do our very best for them. Thanks to you, Boston Children's is a place where we can write the greatest children's stories ever told.”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital 300 Longwood Avenue, Boston, MA 02115 617-355-6000 | 800-355-7944