SIADH or Syndrome of inappropriate antidiuretic hormone secretion is a condition of the body where excess amount of ADH (Anti-diuretic hormone) is produced which results in water retention in the body due to excessive reabsorption from the tubules of the kidney. Person suffering from such condition presents with depressed mood, nausea, vomiting, cramping, personality changes, seizures and coma. Picture shows the various causes of SIADH that is responsible for this condition. Picture credit: https://geekymedics.com/syndrome-of-inappropriate-antidiuretic-hormone-secretion-siadh/