What Causes Knee Pain? 10 Common Reasons Your Knees Hurt (and What to Do)

If you’ve ever wondered what causes knee pain, you are far from alone. A staggering 1 in 4 adults worldwide suffers from chronic knee pain, making it one of the most widespread and debilitating musculoskeletal complaints affecting people of all ages in 2026. Whether you’re noticing a sharp ache when climbing stairs, a dull throb…