Post-streptococcal glomerulonephritis is a mouthful, so it's understandable why one would need synonyms for this term. This medical condition is also known as postinfectious glomerulonephritis, acute poststreptococcal glomerulonephritis, or PSGN for short. PSGN occurs when the kidney filters become inflamed after a streptococcal infection, leading to a reduction in the kidney's ability to filter waste and excess fluids from the blood. The synonyms for post-streptococcal glomerulonephritis all refer to the same condition, but they may be used based on preference, context, or familiarity with certain terms.