If the ACL tear is mild, there is some chance that the patient will heal on his or her own. If the condition is severe or the ligament is completely torn, the patient will not be able to heal on his or her own. For some people with mild ACL tears, there may be some chance that the torn ligament will heal over time. However, for some ACL tears that are more severe, such as a complete ACL tear that severely affects function, they usually do not heal on their own, and patients will need to seek treatment through ligament repair or reconstructive surgery. For mild ACL tears, in order to promote the recovery of the ligament, daily rest and early braking should be paid attention to, and more calcium-rich, protein-rich foods, such as milk, eggs, fish and so on should be eaten. For patients with accompanying pain symptoms, non-steroidal anti-inflammatory drugs such as ibuprofen and diclofenac sodium can be used for relief as prescribed by the doctor. It is recommended that people with torn ACLs undergo further detailed examination in order to cooperate with doctors to take effective treatment measures in time, so as to promote the recovery of health, and do not blindly use medication.