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2020年8月13日 · Use WebMD’s Drug Interaction Checker tool to find and identify potentially harmful and unsafe combinations of prescription medications by entering two or more drugs in question.
- 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 ...
2022年8月12日 · Learn about the different sounds your lungs can make and what they could indicate, from wheezing to crackling to stridor, with WebMD's expert guide.
2024年2月15日 · A feeling of tightness or squeezing in your chest. Tiredness. Ventricular tachycardia may cause a sudden drop in blood pressure, which means your tissue and organs can’t get enough oxygen. You ...
2023年11月14日 · Being pregnant can affect your TSH levels. In general, the TSH levels during different trimesters are as follows: First trimester: 0.18-2.99 (uIU/mL) Second trimester: 0.11-3.98 uIU/mL. Third ...
2022年12月3日 · An injury, inhaling food, or inhaling an object can also lead to stridor. Causes of stridor in adults. In adults, reasons for stridor typically include issues with your airway, vocal cords, or ...
