Does hormone therapy for prostate cancer cause loss of muscle mass?

Yes: Absolutely. It causes fat gain, loss of bone density, depression, poor cognition. But, it is very effective at treating advanced cancer. Exercise, good nutrition and physical therapy can improve a lot of these unhealthy side effects.

Hormone therapy: Medications that shut down testosterone will reduce muscle mass over time. They can also impact bone health; talk to doc about calcium and vit d supplements as well as a med called Prolia to prevent bone loss.