I started taking prednisone and IV steroids when I developed CNS symptoms from my lupus. None of my doctors ever warned me about dangers of osteoporosis with chronic steroid use and I never thought it about because I was in my thirties. Last year I started having terrible backache and muscle spasms and partial paralysis of leg which I thought was lupus related but turned out to be multiple vertebral fractures caused by osteoporosis. When I finally had a bone density test, tech said my bones looked like an 80 year olds. PLEASE, PLEASE if you are on prednisone or other steroids, talk to your doctor about bone density testing and meds to prevent osteoporosis, even if you think you're too young to worry about it.