Knee pain is a common ailment that can range from mild discomfort to debilitating pain. It can be caused by a variety of factors. Common causes include injury, arthritis, bursitis, tendonitis, and osteoarthritis. https://lucyflta521289.like-blogs.com/35197912/knee-pain-causes-symptoms-and-treatment-symptoms-and-causes-causes-and-treatments-causes-symptoms-treatment