When Hormone-Lowering Treatment Is Suggested for Prostate Cancer — Understanding How Androgen Deprivation Therapy (ADT) Works and How the Body Changes During Treatment

Prostate cancer cells have a distinctive trait: they rely on the male hormone testosterone as a kind of fuel for growth. Because of this, when the disease is high-risk or already somewhat advanced, doctors often consider a treatment that sharply lowers the body's male hormones alongside local treatments such as surgery or radiation. This approach is called androgen deprivation therapy (ADT), or hormone therapy.

There are several ways to lower these hormones. The most common is an injection (an LHRH agonist or antagonist) that adjusts signals from the brain to reduce testosterone production in the testes; an oral drug (an antiandrogen) that blocks male hormones from attaching to cancer cells may be added. The goal is not to erase the cancer outright but to cut off the signals it needs to grow, slowing it down and helping other treatments work better.

You may wonder why surgery or radiation alone is not enough. In high-risk cases, hormone therapy is sometimes used for a set period before or after local treatment to lower the chance that invisible microscopic cancer cells remain. Whether the treatment is working is usually tracked not by how you feel but by changes in the PSA (prostate-specific antigen) level on blood tests.

Lower male hormones bring several changes to the body: hot flashes, changes in sexual function, loss of muscle with weight gain, weaker bones (osteoporosis), fatigue, and mood swings can occur. Much of this can be prepared for with regular strength and aerobic exercise, adequate calcium and vitamin D, periodic bone-density testing, and attention to blood sugar and cholesterol.

It helps to ask your care team clearly whether this hormone therapy aims for a cure or for long-term stable control, how long it is planned to continue, and when PSA will be rechecked. Even if side effects are hard, skipping injections or pills on your own can undermine the benefit, so any adjustments should always be decided together with your medical team.

This article is for general information only and does not replace a diagnosis or treatment for any individual. Please discuss decisions about your own condition and treatment with your attending medical team.