Human growth hormone (hGH) was discovered over three decades ago, and evidence of its therapeutic effectiveness was quickly recognized. Until recently, however, the therapeutic use of hGH was limited due to its scarcity and relatively high cost. Prior to recombinant-DNA-dervived (rDNA) hGH, the only source was from the pituitary glands of cadavers. In the human pituitary gland, approximately 10% of the dry weight of pituitary tissue is growth hormone.KeywordsGrowth HormoneShort StatureGrowth Hormone DeficiencyGrowth Hormone SecretionHuman Growth HormoneThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.