Patellofemoral disease has a significant impact on the function of the knee joint. It also degenerates earlier due to the greater stress on the patellar cartilage when people are active. The earliest onset of chondromalacia patella can be around 14 years of age, but the age at which symptoms appear can vary greatly, depending not only on genetic factors, but also on the amount of activity and type of exercise, mostly in the 30s and 40s. When symptoms of chondromalacia patella appear, it affects people’s activities such as squatting, going up and down stairs, climbing mountains, etc. Serious walking discomfort can occur, but generally does not affect people’s lives. This is a physiological degeneration, and it is difficult to have an effective method, and because the symptoms appear at a young age, it is difficult for patients to adapt, and they always want to find a highly skilled doctor to treat them. Personally, I believe that the symptoms of this disease come and go, and that when it is severe, you should reduce your activities, especially those that can trigger its aggravation. When the symptoms are mild, participate in the exercises within your reach to maintain good muscle strength, which can be of great help in slowing down the symptoms, never stop exercising to reduce friction, a sharp drop in muscle strength will only further aggravate the symptoms! If the symptoms are heavy, how can not be reduced, it is best to see a doctor, except for other diseases may be! The above is my personal opinion, people with this disease can refer to, I am also a patient of this disease, I hope my opinion will be helpful to everyone!