Patient's question:
On July 28, 2010, symptoms appeared including red spots, abdominal pain, and joint swelling pain. Gaozhou People's HospitalDoctor's answer:
A child aged three years old developed red spots, abdominal pain, and joint pain, and was diagnosed with Henoch-Sch?nlein purpura. Henoch-Sch?nlein purpura, also known as anaphylactoid purpura, is a systemic vasculitis characterized primarily by small vessel inflammation. It most commonly affects children aged 2-8 years, with boys being more frequently affected than girls. Clinical manifestations vary, but the disease typically presents acutely, with main symptoms including skin purpura, gastrointestinal and joint symptoms, as well as renal involvement. In 30-60% of cases, clinical signs of kidney damage are observed, usually occurring within the first month, though it may also develop later. Symptoms can range in severity, with most blood in urine, proteinuria, and casts, accompanied by hypertension and edema, known as purpura nephritis. However, most cases fully recover, while a few may progress to chronic nephritis. Occasionally, intracranial hemorrhage or nosebleeds may also occur. The prognosis for this condition is generally favorable, with the course typically lasting 1-2 weeks to 1-2 months, though it may persist longer in some cases. Renal involvement is often more prolonged, lasting for months or even years, with 1% of cases developing persistent kidney disease. This is a common condition and can be treated in most hospitals.