Cystitis is a common urinary system disease. Patients may experience symptoms such as frequent urination, urgent urination, painful urination, and discomfort due to swelling and pain in the lower abdomen and perineum. In such cases, patients can visit the urology department of their local hospital for examination and treatment. Initially, routine urine tests and urinary system ultrasound can be performed to determine whether the patient has cystitis. If necessary, a cystoscopy may also be needed. Once diagnosed, treatment can be administered orally or via intravenous antibiotics.