Knee pain is a common problem that can occur in people of all ages. Sometimes knee pain can also be caused by an injury, such as a ligament rupture (ligament - a fibrous and flexible tissue that connects two bones) or cartilage rupture (cartilage - these are hard and flexible white colors There are tissues, which are in many parts of the body including the & nbsp; knee, throat and respiratory system). Apart from these, pain in the knees is also caused by many other diseases, such as arthritis, gout and infection etc.