Systemic lupus erythematosus (SLE or lupus): An autoimmune problem that causes the human body’s have immune process to mistakenly assault wholesome tissue in several elements of the human body. We use cookies on our Web page to provde the most appropriate practical experience by remembering your Choices and repeat visits. https://www.theorthopaedicandpainpractice.com/what-is-avascular-necrosis-of-the-hip/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB