The ligaments of the human body are concentrated near the joints of the body. The ligaments of the thigh are mainly located in the hip and knee joints of the human body. Most of the painful symptoms of ligaments are caused by injuries, such as traumatic falls, sprains, contusions, local pulling injuries, etc. Acute, sudden local violence, which acts on the above injury, is the most important cause of thigh ligament pain. There are also chronic labor injuries, which are also a common cause of ligament location pain. Local long time repeated excessive exercise, labor, local mechanical action, or once suffered an acute injury, has not been healed, or leg posture, resulting in static stretching injury, can lead to local minor injury accumulation, gradually in the local formation of scar, stimulation of the surrounding soft tissue, inflammatory reaction, resulting in local pain.