Mar 7, 2023 · Overview A muscle cramp is a sudden, unexpected tightening of one or more muscles. Sometimes called a charley horse, a muscle cramp can be very painful. Exercising or working hard, …

Oct 11, 2022 · Muscle spasms Swelling Muscle weakness When to see the doctor Mild strains can be treated at home. See a doctor if your symptoms worsen despite treatment — especially if your pain …

May 30, 2024 · There are many types of movement disorders that cause different symptoms. For example, dystonia causes muscle contractions that lead to twisting of the body. Another movement …

Jul 21, 2025 · Very rarely, statins can cause life-threatening muscle damage called rhabdomyolysis (rab-doe-my-OL-ih-sis). Rhabdomyolysis can cause extreme muscle pain, liver damage, kidney failure, …

Jan 25, 2025 · The muscle spasms can range from mild to more serious. They may be painful, and they can affect the person's ability to complete daily tasks. There's no cure for dystonia, but medicines …

Nov 19, 2025 · Overview Polymyositis (pol-e-my-o-SY-tis) is a condition in which swelling and irritation, called inflammation, happens when the immune system attacks its own muscle tissues. Polymyositis …

May 17, 2025 · Muscular dystrophy is a group of diseases that causes muscles to become weaker and lose mass over time. The condition is caused by changes in the genes that make proteins needed to …

Sep 12, 2025 · Dermatomyositis (dur-muh-toe-my-uh-SY-tis) is a condition in which swelling and irritation, called inflammation, attacks the body's tissues. Dermatomyositis causes muscle weakness …

Symptoms Back pain can range from a muscle ache to a shooting, burning or stabbing feeling. Also, the pain can radiate down a leg. Bending, twisting, lifting, standing or walking can make pain worse. …

Apr 29, 2023 · Lean muscle mass naturally diminishes with age. Your body fat percentage will increase over time if you don't do anything to replace the lean muscle you lose over time. Strength training …