A strain and a sprain are both injuries to the body, but they affect different types of tissue.
Strain
A strain is an injury to a muscle or tendon, which is the fibrous tissue that connects muscle to bone.
Strains typically occur when a muscle is stretched or pulled too far, such as when lifting a heavy object or playing sports.
Symptoms of a strain can include pain, muscle spasms, weakness, and difficulty moving the affected area.
Sprain
A sprain, on the other hand, is an injury to a ligament, which is the fibrous tissue that connects bone to bone.
Sprains typically occur when a joint is twisted or bent in an unnatural way, such as when falling or rolling an ankle.
Symptoms of a sprain can include pain, swelling, bruising, and difficulty moving the affected joint.
Treatment
Both strains and sprains can range from mild to severe, depending on the extent of the injury. Treatment for both usually includes rest, ice, compression, and elevation (RICE) to reduce inflammation and pain, followed by physical therapy to help improve strength and range of motion.