Why Does My Knee Hurt When Going Up the Stairs?

Why does my knee hurt when going up stairs? Common causes include patellar malalignment, arthritis, and tendinitis. Learn when to see an expert.
Why Do I Have Knee Pain After Running?

Identify causes of knee pain after running, including overuse, poor form, chondromalacia, & tendinitis. Get relief with rest, new shoes, PT, or orthopedic help.
Knee Chondromalacia Symptoms & Treatment

You may be suffering from a condition called knee chondromalacia or chondromalacia patella if you’ve been experiencing dull, achy pain around or under your kneecap. In the past, any pain over the kneecap or patella (the anterior aspect of the knee) was often referred to as patellofemoral chondromalacia, but it actually describes a specific condition. […]