Henoch-Schönlein Purpura (HSP) In Children - Cedars-Sinai

How is Henoch-Schönlein purpura diagnosed in a child?

Your child’s healthcare provider will ask about your child’s health history and do a physical exam. Diagnosis is based on symptoms such as:

  • Joint pain and swelling (arthritis)
  • A rash
  • Belly pain
  • Kidney disease

Your child may also need tests, such as:

  • Biopsy. Small tissue samples may be taken. They may be taken from the skin or the kidney. They are looked at with a microscope. This may only be needed if the diagnosis is unclear.
  • Blood and urine tests. Your child's urine will be checked for blood and protein. A blood test can check kidney function.
  • Ultrasound. This imaging test uses sound waves and a computer to make pictures of blood vessels, tissues, and organs. It may be used to look at the digestive tract for signs of the disease.

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