Symptoms of poststreptococcal glomerulonephritis usually occur 1 to 3 weeks after the strep infection. PSGN is caused by an infection with certain strains of Streptococcus bacteria. When the infection is in the throat, it's called pharyngitis. When it's in the skin, it's often called impetigo . Children between 4 and 10 years old are most commonly affected.
Males are more likely to be affected than females.
Adults with PSGN usually have more serious kidney inflammation than children and are less likely to have a full recovery. The only known way to prevent PSGN is to avoid strep infections. This is very difficult to do. Diagnosis of PSGN begins with the history and physical exam. A urine test called a urinalysis is usually done.