,reports a burning sensation after urination that lasts for a few hours and then subsides, but reoccurs after each urination. Tests Done: Ultrasound: Right kidney 80mm, left kidney 110mm (right kidney smaller since birth). The ultrasound report states kidneys are good Creatinine Test: Normal levels. 1.0 dg/ml Urine Routine & Culture: No infection detected. Concern: Despite normal kidney function and no urinary infection, the burning sensation persists. The user is seeking an explanation for this symptom.