What is the difference between urinary tract infection and acute cystitis?

Urinary tract infection and acute cystitis are common urinary tract infections, but there are still very different. Urinary tract infection is an inflammatory reaction caused by bacterial invasion of urinary tract epithelium, patients are generally accompanied by pyuria and bacteriuria. Acute cystitis is an inflammatory disease caused by non-specific bacterial infection, the onset is more acute, may appear hematuria and other symptoms.