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  1. Osteopathic medicine: What kind of doctor is a D.O.? - Mayo Clinic

    2022年11月29日 · You know what M.D. means, but what does D.O. mean? What's different and what's alike between these two kinds of health care providers?

  2. Hemorrhoids - Symptoms and causes - Mayo Clinic

    2025年8月23日 · Hemorrhoids (HEM-uh-roids), also called piles, are swollen veins in the anus and lower rectum. Hemorrhoids are like varicose veins. If they develop inside the rectum, …

  3. Parkinson's disease - Symptoms and causes - Mayo Clinic

    3 天之前 · Parkinson's disease is a movement disorder of the nervous system that worsens over time. The nervous system is a network of nerve cells that controls many parts of the body, …

  4. Atrial fibrillation - Symptoms and causes - Mayo Clinic

    2025年10月3日 · Atrial fibrillation (AFib) is a heart rhythm disorder. In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat. The signals go …

  5. Hepatitis C - Symptoms and causes - Mayo Clinic

    2025年8月22日 · Hepatitis C is a viral infection that causes liver swelling, called inflammation. Hepatitis C can lead to serious liver damage. The hepatitis C virus (HCV) spreads through …

  6. Calorie Calculator - Mayo Clinic

    If you're pregnant or breast-feeding, are a competitive athlete, or have a metabolic disease, such as diabetes, the calorie calculator may overestimate or underestimate your actual calorie needs.

  7. Gas and gas pains - Symptoms & causes - Mayo Clinic

    2025年9月20日 · Learn about what is typical digestive system gas, what contributes to gas, and what you can do to lessen gas or gas pains.

  8. Vitamin B-12 - Mayo Clinic

    2025年8月13日 · Vitamin B-12 is a vitamin the body uses to make and support healthy nerve cells. It's also used to make healthy red blood cells and the genetic material inside cells called …

  9. Arthritis pain: Do's and don'ts - Mayo Clinic

    2025年4月4日 · Arthritis is a leading cause of pain and limited mobility worldwide. There’s plenty of advice on managing arthritis and similar conditions with exercise, medicines and stress …

  10. Swollen lymph nodes - Symptoms & causes - Mayo Clinic

    2025年4月25日 · Swollen lymph nodes most often happen because of infection from bacteria or viruses. Rarely, cancer causes swollen lymph nodes. The lymph nodes, also called lymph …