Muscle strains are tears or other damage due to over stretching in the muscle fibers, or in the tendons that connect muscles to bones. Causes of muscle strains include muscle imbalance, when one side of the joint is stronger than the other; and muscle fatigue, when stress or over stretching pulls the muscle and connective tissue. Symptoms and signs of muscle strains include pain, swelling, and tenderness in a muscle or joint. You should talk to your physician if you experience excessive swelling, bruising and/or severe tenderness in the injured area; or if it prevents you from moving comfortably. If a physician referral is not recommended, consider these simple self care tips: Rest by reducing your activity and avoid movements that place stress on the injured area. Ice as soon as possible using a coldpack 20 minutes on, 20 minutes off for 2 hours and continue for 24 to 48 hours after the injury. Depending on the severity of the injury after the initial onset, elevate the injured area for 24 to 48 hours. Drink plenty of water. This will help with the healing process by flushing out toxins. Note: The information in this text is not intended to be a substitute for appropriate physician diagnosis and medical care.