What is the definition or description of: hormone therapy?

Hormone therapy: Hormone therapy would be a treatment that manipulates or alters a hormonal axis. In the urology world, hormone therapy consists of injections or pills to suppress or block the effect of testosterone typically used for prostate cancer patients.

Hormone therapy: Hormone therapy in ob/gyn refers to mainly hormone replacement at menopause. Estrogen, with or without progesterone, is given for replacement as estrogen hormone declines after the menopause.

Exogenous hormones: Any hormone given from externally (body not being able to make it enough for its own need, or as a form of medication to achieve certain goal) comes under this category. Estrogen in menopause; thyroxine for hypothyroidism, Insulin in dm are all in this category; so are hormones in cancer treatments.