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  1. Muscle cramp - Symptoms and causes - Mayo Clinic

    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 …

  2. Muscle strains - Symptoms and causes - Mayo Clinic

    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 …

  3. Statin side effects: Weigh the benefits and risks - Mayo Clinic

    Jul 21, 2025 · What are statin side effects? Muscle pain and damage One of the most common complaints of people taking statins is muscle pain. You may feel this pain as a soreness, …

  4. Myasthenia gravis - Symptoms and causes - Mayo Clinic

    Aug 22, 2025 · Overview Myasthenia gravis is a condition that happens when communication between nerves and muscles breaks down. This causes muscles to feel weak and get tired …

  5. Dystonia - Symptoms and causes - Mayo Clinic

    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, …

  6. Muscle cramp - Diagnosis and treatment - Mayo Clinic

    Mar 7, 2023 · Treatment Self-care measures usually can treat muscle cramps. A health care provider can show you stretching exercises that can reduce the chances of getting muscle …

  7. Muscle pain Causes - Mayo Clinic

    Apr 27, 2023 · The most common causes of muscle pain are tension, stress, overuse and minor injuries. This type of pain is usually limited to just a few muscles or a small part of your body. …

  8. Myofascial pain syndrome - Symptoms and causes - Mayo Clinic

    Jan 5, 2024 · Overview Myofascial pain syndrome is a long-term pain condition. It involves some muscles and the thin cover of tissue that holds muscles in place, called fascia. Pressure on …

  9. Muscular dystrophy - Symptoms & causes - Mayo Clinic

    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 …

  10. Night leg cramps Causes - Mayo Clinic

    Aug 13, 2005 · Most of the time, there's no known cause for night leg cramps. In general, they're likely the result of tired muscles and nerve problems. The risk of having night leg cramps …