Henoch-Schönlein vasculitis is the most common systemic vasculitis in children and it has a benign course and characterised purpura, arthritis and gastrointestirıal and/or renal involvement. in this study we planned to analyse and compare of the clinical and Iaboratory characteristics of the patient with Henoch-Schönlein vasculitis with literature. W e analyzed 135 cases with Henoch-Schönlein vasculitis, .who. had been followed u p at the departments of pediatrics of Ondokuz Mayıs University and Gülhane Military Meclical School between January 1993 and January 2000, retrospectively. Of the 135 patients, eighty (59.2%) were male and fifty-five (40.8%) were gül, and the median age was 9.5 years (10 months to 17 years). The distribution of the patients to the season was as follows: 15% in spring, 18.5% in summer, 21.1% in autumn, and 45.4% in winter. The most complaints of admission were purpura (100%), abdominal pain (62%) and arthralgia (48.8%). There was a positive history of upper respiratory tract infection in the last month in 4.1.4% of the cases. On physical examination, purpura, arthritis, edema of the legs, fever and hypertension were found in the 100%, 37.7%, 31.8%, 11% and 5.9%of the cases, respectively. Gastrointestinal hemorrhage, renal involvement, and scrolal involvement. were observed 29.6%, 55.5% and 7.4% of the cases, respectively. 11. was learned that one patient had been appendectomized a month belbre. While- the improvement time has not been different between the cases with or without complication. rnicroscopic hematuria continued 2 to 6 months in the patients who had renal involvement. Henoch-Schönlein purpura has a benign course and permanent complications resulted from organ involvement are very rare.