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  1. The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award ...

    • Overview
    • Epidemiology
    • Prognosis
    • Causes
    • Signs and symptoms

    Henoch-Schonlein purpura (HSP) is a disease involving inflammation of small blood vessels. It most commonly occurs in children. The inflammation causes blood vessels in the skin, intestines, kidneys, and joints to start leaking. The main symptom is a rash with numerous small bruises, which have a raised appearance, over the legs or buttocks.

    Although HSP can affect people at any age, most cases occur in children between the ages of 2 and 11. It is more common in boys than girls. Adults with HSP are more likely to have more severe disease compared to children.

    HSP usually ends after four to six weeks -- sometimes with recurrence of symptoms over this period, but with no long-term consequences (recurrences are fairly common). If organs such as the kidneys and intestines are affected, treatment is often needed and it is important to have regular follow-up to prevent serious complications.

    The exact cause of HSP is not known. The body's immune system is believed to play a role in targeting the blood vessels involved. An abnormal immune response to an infection may be a factor in many cases. Approximately two-thirds of the cases of HSP occur days after symptoms of an upper respiratory tract infection develop. Some cases of HSP have be...

    The classic symptoms of HSP are rash, joint pain and swelling, abdominal pain, and/or related kidney disease, including blood in urine. Before these symptoms begin, patients may have two to three weeks of fever, headache, and muscular aches and pains. Rarely, other organs, such as the brain, heart, or lungs, may be affected. Rash. The rash usually ...

  2. Health & Diet Guide. BMI Calculator & Healthy Weight Plan. Body mass index (BMI) estimates how healthy your weight is based on your height. There's no "perfect weight" that fits everyone, but BMI...

  3. 2023年8月3日 · 10 min read. What Is Anemia? Anemia is defined as a low number of red blood cells. In a routine blood test, anemia is reported as a low hemoglobin or hematocrit. Hemoglobin is the main...

  4. 2023年6月7日 · Berberine is a bitter-tasting and yellow-colored chemical. It might help strengthen the heartbeat, which could benefit people with certain heart conditions. It might also kill bacteria, help...

  5. 2023年5月22日 · What Is a Partial Thromboplastin Time Test? Medically Reviewed by Carol DerSarkissian, MD on May 22, 2023. Written by WebMD Editorial Contributors. What Does a PTT Test Look For? Why Would I Need...

  6. 2021年11月12日 · If your calcium levels are too high or too low, you may need a parathyroid hormone blood test to learn why. Tiny parathyroid glands in your neck may be making too much or too little hormone to ...

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