Patellar chondromalacia can be treated by quadriceps exercise, quadriceps exercise can be done by straight leg raising exercises, let the patient lie flat on the bed in the supine position, then the knee joint is not bent, you can do the straight leg raising of the lower limb, this can effectively practice the exercise of quadriceps. The specific method is to put a 5-6 kg sandbag on the knee, bend the knee 30 degrees, then push down hard for 5 seconds, relax for 5-6 seconds, then repeat the next time, each time 2-3 times, each time half an hour, this exercise can also effectively exercise the quadriceps. The quadriceps exercise can strengthen the stability of the knee joint thus to treat chondromalacia patellae. In addition to rehabilitation exercises, there should also be medication, which can be applied to non-steroidal anti-inflammatory drugs, such as Cilobal, Fotalin or Tylenol. At the same time, aminoglycosides should be applied. Clinically, two major types of aminoglycosides are commonly used: glucosamine hydrochloride and glucosamine sulfate.