If the ligaments at the root of the thigh are strained, the following symptoms may occur: First, pain, especially at the time of the injury is very significant, and if severe, the sound of the ligament rupture can be heard. Second, swelling, the root of the thigh ligament strain when there is often bleeding as well as the surrounding soft tissue damage, there will be a significant swelling of the root of the thigh. Thirdly, there can be obvious pressure pain and bruising ecchymosis in the injured area, which can be seen when the bleeding penetrates into the subcutaneous area due to bleeding. Fourthly, due to the pain and swelling of the injured area, the movement of the hip can be significantly limited.