Because: slight injury, partial tear or complete fracture of muscle caused by active strong contraction or passive excessive elongation of muscle is called muscle strain. So a fracture is impossible.

Treatment: After the muscle strain, immediately carry out cold treatment-wash the local area with cold water or apply ice with a towel, and then bandage the injured area to prevent swelling. While relaxing the muscles of the injured part and raising the injured limb, you can take some drugs to relieve pain and stop bleeding. Take off the bandage after 24 to 48 hours.