Your Complete Guide to Muscle Strains & Sprains

A pulled muscle and a strain are the same thing, referring to damage to a muscle or its tendon. A sprain specifically refers to damage to a ligament that connects bones at a joint. All three terms describe soft tissue injuries graded from mild (Grade I) to severe (Grade III), but they affect different anatomical structures and may require different rehabilitation approaches.

Grade I strains and sprains are generally mild and heal within a few weeks with proper care. However, Grade II and III injuries can be serious, potentially requiring months of rehabilitation or surgical intervention. Even mild injuries should be taken seriously because inadequate treatment significantly increases the risk of chronic instability, recurrent injury, and long-term joint problems.

Strains and sprains are among the most common musculoskeletal injuries worldwide. Ankle sprains alone account for approximately 2 million injuries per year in the United States, and hamstring strains represent the single most common injury in professional soccer and track and field. These injuries affect people of all ages and activity levels, from elite athletes to office workers.