The authors present the diagnostic procedure in children with glomerulonephritis. Most frequent types of glomerulonephritis are described as well as their differential diagnosis, prognosis and therapy. Most frequent urinary findings are listed - syndromes which correspond to individual types of glomerulonephritis and indications for renal biopsies are discussed. In conclusion the authors outline their opinions about life regimen, school attendance and physical load.

        Key words: acute, chronic, rapidly progressing glomerulonephritis, urinary syndromes, renal biopsy, therapy of glomerulonephritis