Fascial strains mainly exist in the following manifestations: 1. There is a strain but no rupture, and the main manifestation is obvious pain at the strained area, which is aggravated by activity and not painful at rest. There is no obvious edema at the time of injury, but with the prolongation of time, the peak of edema will be reached at 2-3 days, and obvious edema will appear. The local skin tension is obviously increased, pain affects the activity, and the ultrasound examination can clarify the continuity of the tendon. 2, there is a strain and there is a majority or even a complete rupture, not only have the symptoms of the previous part of the strain, such as pain edema and limited activity. It will also touch the retracted fascia at the site of the tearing exercise, and when the vascular injury is involved, there will be obvious hematoma under the skin, and there will be obvious lumps for a short time, which can be clarified by ultrasound examination.