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  1. Easy bruising: Why does it happen? - Mayo Clinic

    May 30, 2025 · Easy bruising sometimes may be a symptom of a serious health issue, such as a blood-clotting condition or a blood disease. See your healthcare professional if you: Often get large bruises, …

  2. Bruise: First aid - Mayo Clinic

    Apr 17, 2024 · A bruise forms when blood vessels under the skin break. The trapped blood creates a bruise that's black, purple or blue then changes color as it heals. You can enhance bruise healing …

  3. 容易瘀伤:为什么会出现这种情况? - 妙佑医疗国际

    Oct 25, 2025 · Hoffman R, et al. Clinical approach to the patient with bleeding or bruising. In: Hematology: Basic Principles and Practice. 7th ed. Elsevier; 2018. https://www.clinicalkey.com. …

  4. Immune thrombocytopenia (ITP) - Symptoms and causes

    Apr 29, 2025 · Overview Immune thrombocytopenia (ITP) is an illness that can lead to bruising and bleeding. Low levels of the cells that help blood clot, also known as platelets, most often cause the …

  5. Thin skin? Added protection helps - Mayo Clinic

    Jun 24, 2025 · Fragile or thin skin is a fairly common problem, especially in older adults.

  6. Von Willebrand disease - Symptoms & causes - Mayo Clinic

    Sep 15, 2025 · Von Willebrand disease is a lifelong bleeding condition that makes it hard for blood to clot. People with the condition either have low levels of von Willebrand factor, a protein that helps …

  7. Sclerotherapy - Mayo Clinic

    Feb 18, 2025 · Also, the needle stick used in sclerotherapy might cause: Bruising. Hives. Small skin sores. Darkened skin. These symptoms usually go away within days to weeks. Some may take …

  8. Sprained ankle - Symptoms and causes - Mayo Clinic

    Aug 11, 2022 · Swelling Bruising Restricted range of motion Instability in the ankle Popping sensation or sound at the time of injury When to see a doctor Call your doctor if you have pain and swelling in …

  9. Thrombocytopenia (low platelet count) - Symptoms and causes

    May 13, 2025 · Thrombocytopenia can be mild and cause no symptoms. If platelets become too low, there is a risk of serious bleeding after an injury or during surgery. Rarely, dangerous internal …

  10. Broken toe - Symptoms and causes - Mayo Clinic

    Nov 2, 2022 · Symptoms Signs and symptoms of a broken toe include: Pain Swelling Change in skin color from bruising or bleeding under the skin When to see a doctor Consult a health care provider if …