What are the causes of knee pain?

The causes of knee pain are disease factors, medication factors and environmental factors. Of these, disease factors are classified as traumatic, infectious, allergic and autoimmune, degenerative knee disease, metabolic bone disease, and bone and joint tumours.
In short, the causes of knee pain are complex and require a comprehensive analysis combined with the patient’s medical history, physical examination and laboratory tests to make a clear diagnosis and then treat the symptoms.