Osteoporosis, but I don't believe it was the UP that caused it. I attribute the osteoporosis from my prednisone dependency before my operation. While on prednisone, I also developed type 2 diabetes and had uncontrollable high blood pressure.
Since my operation and off the prednisone, I no longer have the diabetes, my blood pressure is easily controlled with only 1 pill per day (I was on three different blood pressure meds), but I will forever have osteoporosis.