Acute nephritis usually does not show the manifestation of urinary frequency and urgency, and may appear hematuria, proteinuria, edema, hypertension and so on. Acute nephritis, also known as acute glomerulonephritis, mostly occurs after streptococcal infection for 1 to 3 weeks, hematuria, proteinuria, edema, hypertension, renal function may have a transient decrease, accompanied by a decrease in serum C₃ complement, is a self-limiting disease, and the prognosis is good for most patients. Urinary frequency and urgency is seen in urinary tract infection, which is an infectious disease that occurs when pathogens grow and multiply in the urinary tract, including acute pyelonephritis and cystitis. People with pyelonephritis may also experience systemic symptoms such as fever, chills, and muscle aches. If you have symptoms such as frequent urination and urgency to urinate, it is recommended to go to the nephrology department of the hospital for consultation and standardized treatment under the guidance of the doctor.