Chondromalacia patella is a condition that affects the cartilage under the kneecap due to overuse, injury and other factors, according to Mayo Clinic. Its common symptom is knee pain, which tends to increase when a person is walking on stairs.
Some risk factors for this condition include age, gender, flat feet, previous injury, high activity level and arthritis, notes Healthline. Females are more likely than males to suffer from this condition, and adolescents and young adults have a high risk of getting Chondromalacia patella. The purpose of treatment is to relieve the pressure on the joint and the kneecap. Physical therapy helps to strengthen the adductors, abductors, hamstrings and quadriceps.