Hormone: Naturally occurring chemical substance formed by the body and carried to another area where it has a specific effect, i.e., estrogen. Hormones can also be manufactured and administered.


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Hormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs. They work slowly, over time, and affect many different processes, including

  • Growth and development
  • Metabolism - how your body gets energy from the foods you eat
  • Sexual function
  • Reproduction
  • Mood

Source: MedLinePlus (NIH)2

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Hormones: Chemical substances having a specific regulatory effect on the activity of a certain organ or organs. The term was originally applied to substances secreted by various Endocrine Glands and transported in the bloodstream to the target organs. It is sometimes extended to include those substances that are not produced by the endocrine glands but that have similar effects.3

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Hormone Therapy: Various treatment modalities that produce the desired therapeutic effect by means of change of hormone/hormones level.4


Types may include:5

Types of Hormone:

Categories for Hormones

Category of Hormone Therapy:


Anatomy Articles

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Symptom Articles

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Related Symptom Topics

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  1. Source: RDCRN (NCATS/NIH): rarediseasesnetwork.org/ cms/ bvmc/ Learn-More/ Glossary
  2. Source: MedLinePlus (NIH): medlineplus.gov/ hormones.html
  3. Source: MeSH (U.S. National Library of Medicine)
  4. Source: NCI Thesaurus
  5. ibid.
  6. ibid.
  7. Source: MedLinePlus (NIH): medlineplus.gov/ mooddisorders.html
  8. Source: NIDDK (NIH): niddk.nih.gov/ health-information/ endocrine-diseases/ adrenal-insufficiency-addisons-disease

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Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.