Anterior cruciate ligament (ACL) injuries and tears have certain differences in symptoms, causes and treatments. 1. Symptoms are different: ACL injury can lead to a tearing sound inside the knee joint, and in severe cases, the knee joint feels weak and weak, accompanied by painful symptoms. The pain of tearing is too severe, and in severe cases, bleeding may occur. 2. Different causes: anterior cruciate ligament injury is mainly due to the knee joint strong over-extension or strong abduction and the onset of the knee joint, such as in the flexion of the knee, the external force from the front to the back in the femur, which led to the anterior cruciate ligament produced by the different injuries. Tears are often caused by strenuous physical exercise, resulting in joint sprains, which are aggravated to produce a tear. 3. Different treatment methods: the treatment of ligament injuries is based on medication, and aspirin, ibuprofen and other medications can be used as prescribed by the doctor to achieve anti-inflammatory and analgesic effects, which in turn help the patient’s ligament function to recover. If the ligament is torn, it is difficult to control with medication and ACL reconstruction should be considered. Once the symptoms of joint swelling and pain appear, you need to be vigilant and go to the hospital as soon as possible to consult a doctor for examination, and carry out targeted treatment after a clear diagnosis.