Knee Pain What Causes Kneecap Pain When Walking? Causes of Knee PainJun 16, 2016 Kneecap pain, also known as patellofemoral pain, strikes people of all ages. Some people notice pain in both knees, while in others it is relegate... Join Us A short sentence describing what someone will receive by subscribing Your email Subscribe100% free, Unsubscribe any time! Follow us