Hormone therapy, also known as hormone replacement therapy (HRT), is a treatment that involves the administration of hormones to supplement or replace the body's natural hormone levels. This therapy is commonly used to treat conditions such as menopause symptoms, hormone imbalances, and certain types of cancer. Hormone therapy can involve the use of various hormones, including estrogen, progesterone, testosterone, and thyroid hormones, and can be administered through oral medications, patches, gels, injections, or implants. Hormone therapy is typically prescribed and monitored by healthcare professionals to ensure its safety and effectiveness.