Sprains affect your joints. Strains affect your muscles. Both usually occur after a fall or sudden movement that violently pulls or twists a part of your body. Chronic overuse of muscles or joints can also cause strains and sprains.
Symptoms of a sprain:
Feeling a tear or pop in a joint followed by pain, swelling, and bruising
Stiffness or instability of the joint
Warmth and redness of the skin near the affected joint
Symptoms of a strain:
Sharp pain at the site ...