Commonly found in older patients when the joint becomes roughened and leads to pain and stiffness in the hip. Initially, symptoms may be mild, but as the hip gets increasingly worn, rising and more frequent pain and stiffness may be noticed. Pain can often disturb sleep. Treatment can include pain killers or anti-inflammatory medication, mobility aids, activity modification, weight loss and physiotherapy. Injections can be useful for short-term relief. When conservative plans are no longer working, a hip resurfacing or replacement should be considered in which worn parts of the joint are replaced with artificial components.