1. Cystitis - acute  (Trust Mark: Doctor-Reviewed)
Acute cystitis is a bacterial infection of the bladder or lower urinary tract. Acute means sudden or severe. See also: Cystitis - recurrent; Cystitis - noninfectious; Interstitial cystitis; Urinary tract infection. • Reviewer: Linda Vorvick, MD, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Cystitis  (Trust Mark: Doctor-Reviewed)
Cystitis is defined as inflammation of the urinary bladder. Urethritis is an inflammation of the urethra, which is the passageway that connects the bladder with the exterior of the body. Sometimes cystitis and urethritis are referred to collectively...• Author: Rebecca J. Frey