Knee bursitis (also known as housemaid's knee or clergyman's knee) occurs when one of the many bursae in the knee becomes inflamed, swollen, or irritated. A bursa, which is a fluid-filled sac, acts as ...

Finding it harder to do everyday activities like climb stairs or simply bend down to tie your shoes lately? If you have achy knees, it may be bursitis, a common inflammatory condition that causes pain ...