In recent decades the number of patients with post streptococcal glomerulonephritis has decreased considerably in the United States and Europe industrialized countries. In other parts of the world ,some developing communities. the incidence of post streptococcal glomerulonephritis has remained high. post streptococcal glomerulonephritis is one of the leading cause requiring hospital admissions in children , and it is also an important cause of acute renal failure in developing countries. Though deaths due to this disease are rare, it can cause serious complications such as hypertensive emergency, congestive cardiac failure, renal failure, encephalopathy and retinopathy .