Clinical features: Fever (usually high fever with chills and rigors). Dysuria. Hematuria. Pain in the costovertibral angle on the affected side.
Pyelonephritis can cause abdominal pain and tenderness, fever, nausea, confusion, fatigue, and an accelerated heart rate, all of which start to develop one to two days after
Symptoms of a kidney infection include: Sudden onset of chills Fever over 100 degrees Fahrenheit Pain in the groin, lower back or side Nausea Vomiting Abdominal muscle spasm