Effectiveness of Ambu® aScope™ 4 Cysto With the aView™ 2 Advance for Flexible Cystoscopy

The purpose of this study is to evaluate the use of the single-use Ambu® aScope™ 4 Cysto for removal of ureteral stents as compared to routine flexible reusable cystoscopes.

Inclusion Criteria: 1. Adult (male or female), ≥18 years old 2. Patient undergoing routine flexible cystoscopy 3. Patient with a ureteral stent in the urinary system that is ready to be removed. 4. No active urinary tract infection 5. Subject is willing and able to sign informed consent and HIPAA authorization and comply with requirements of the protocol. Exclusion Criteria: 1. History of prior bladder/urethral reconstructive surgery. 2. History of high-grade bladder cancer or carcinoma in-situ of the bladder, undergoing cystoscopy for follow-up/surveillance purposes. 3. Known unpassable urethral stricture 4. Febrile patient with active urinary tract infection (UTI) 5. Subjects with acute infection (acute urethritis, acute prostatitis, acute epididymitis) 6. Subject with severe coagulopathy 7. Patient is unable to read and/or understand study requirements 8. Patient is unable or unwilling to provide written consent to participate in the study. 9. Subject, in the opinion of the Investigator, has a severe comorbidity, poor general physical/mental health and/or a condition that will not