Pain in the knees Mauro Keiserman, MD. Rheumatology Specialist by the Brazilian Society of Rheumatology. Head Professor of Rheumatology at the Catholic University School of Medicine (PUC-RS). Arthritis of the knees What are the causes of knee pain? Pain in the knee is extremely frequent. There are several causes. Some are very common and easy… Continuar lendo PAIN IN THE KNEES