A kidney infection can start quietly and turn serious within a day or two. Understanding the acute pyelonephritis meaning, a sudden bacterial infection of one or both kidneys, helps you act early. Common acute pyelonephritis symptoms include high fever with chills, flank pain, burning urination, nausea and cloudy or foul-smelling urine. Warning signs such as repeated vomiting, very li... https://www.drsatyanarayanagarre.in/blogs/acute-pyelonephritis-warning-signs-a-nephrologist-s-guide-to-timely-treatment