Good morning, My husband has mild arthritis in his joints. There is a ring developing around his ankle, not painful, just looks like a little slightly hard doughnut around the ankle joint, and I am wondering if arthritis can develop in this manner. We have not had an xray yet. No edema or uric acid problems, and he has kidney/bladder issues - specifically Nephrogenic Diabetes Insipidus, catheter minimally 6 times daily with 4500 - 6000 cc output daily. ( hope I spelled it correctly) Thank you for your time, Brenda/Tomball