The purpose of this study is to observe change of distribution pattern of Hunner's ulcer in patient with interstitial cystitis/bladder pain syndrome

This is observational, 12 months study

Inclusion Criteria:

1. must have experienced bladder pain, urinary urgency and urinary frequency, for at least 6 months prior to entry into the study
2. Pain VAS ≥4
3. O'Leary-Sant Interstitial Cystitis questionnaire (IC-Q) symptom and problem ≥ 12( and pain ≥2, and nocturia ≥ 2)
4. PUF score ≥ 13
5. cystoscopic record within 2 years
6. Hunner ulcer lesion in cystoscopic finding

Exclusion Criteria:

1. Scheduled for or use of intravesical therapy (eg, bladder distention,transurethral resection of bladder ulcer, instillation) during or within 6months prior to the study and use of pentosan polysulfate sodium within 1 months prior to the study

2. Patients who are pregnancy or, childbearing age without no contraception

3. Patients with voided volume <40 or, > 400ml

4. Patients with microscopic hematuria, (≥1+ in dipstick), If not excluded that no evidence of neoplastic tumor examination

5. Patients with urine culture showing evidence of urinary tract infection 1month prior to the study

6. Accompanied medical problem below

   • Tuberculosis in urinary system
   • Bladder cancer, urethral cancer, prostate cancer
   • Recurrent cystitis
   • Anatomical disorder

7. Patients had prior surgery (eq, bladder augmentation, cystectomy

8. Patients with neurologic disorder

9. Patients with indwelling catheter or intermittent self-catheterization

10. Patients with psychologic problem

Tertiary care clinic