This discussion caught me completely by surprise. Over the past cpl. of mos., I started feeling pain on both sides of my hips when I walked. It's definitely different from back pain which I have had my share of. On a cpl. of occasions my thoughts drifted to "hip replacement" as I am in my late 60's that wouldn't be unusual. When I read this thread it blew me away. I had never ever considered the effects of the loss of testosterone on my hips. Sure, I knew that testosterone loss would lead to muscle mass loss, (ie. in my arms, chest, back and legs) so why not the muscles surrounding the hips. This never occurred to me. This journey is amazing!