After a knee injury, after regular examination and treatment, you can return to the function of a normal person’s life. However, it is still recommended not to do too heavy work. The main role of the knee joint is to bend and straighten, where the patella can reduce the ability to lift the knee to a considerable extent. Injury to the knee joint may affect the ability to walk, mainly the ability to extend the knee. This is why it is important to have an examination and treatment after an injury, and it is also best not to do too much heavy work after treatment. In fact, most knee injuries can return to normal after regular conservative treatment or surgery. However, after recovery, it is necessary to be careful not to engage in too heavy physical work, which may easily lead to re-injury of the knee joint.