Post-infectious glomerulonephritis is a rare condition that affects the kidneys and occurs following an immune response to a prior infection in the body. This inflammation of the kidneys can lead to a range of symptoms, including fever, nausea, vomiting, and swelling of the legs and feet. Although post-infectious glomerulonephritis is a specific medical term, there are several synonyms for it that are commonly used by medical professionals. These include acute post-streptococcal glomerulonephritis, PSGN, and post-infectious GN. Regardless of the name used, early diagnosis and prompt treatment are essential to prevent long-term damage to the kidneys and ensure a full recovery.