USMLE Prep - Medical Reference Library

Interstitial Cystitis/Bladder Pain Syndrome — Evaluation & Management

System: Urology • Reviewed: Aug 31, 2025 • Step 1Step 2Step 3

Synopsis:

Diagnosis of exclusion characterized by chronic bladder/pelvic pain with urinary urgency/frequency. Start with education, diet modification, and pelvic floor PT; escalate to oral/intravesical therapies and neuromodulation.

Key Points

  • Stabilize ABCs; begin targeted evaluation without delaying life-saving therapy.
  • Use system-specific risk tools to guide testing and disposition.
  • Order high-yield tests first; escalate imaging when indicated.
  • Start evidence-based initial therapy and reassess frequently.

Algorithm

  1. Primary survey and vitals; IV access and monitors.
  2. Focused history/physical; identify red flags and likely etiologies.
  3. Order system-appropriate labs and imaging (see Investigations).
  4. Initiate guideline-based empiric therapy (see Pharmacology).
  5. Reassess response; arrange consultation and definitive management.

Clinical Synopsis & Reasoning

For Interstitial Cystitis Bladder Pain Syndrome Evaluation Management, frame the differential by acuity and pathophysiology, then align diagnostics to the leading hypotheses. Prioritize stabilization while obtaining high‑yield studies such as CBC (Baseline hematology), BMP (Electrolytes/renal). Incorporate bedside imaging and targeted labs to define severity and identify complications; synthesize results with clinical trajectory to refine the working diagnosis and disposition needs.


Treatment Strategy & Disposition

Initiate disease‑directed therapy alongside supportive care, titrating to objective response. Pharmacologic options commonly include Analgesia/Antipyretics. Use validated frameworks (e.g., Stepwise Management) to guide escalation and site of care. Address precipitating factors, de‑escalate empiric therapies with data, and arrange follow‑up for monitoring and risk‑factor modification; admit patients with instability, high risk of deterioration, or needs for close monitoring.


Management Notes

Discuss PPS retinal toxicity risk and recommend baseline/periodic ophthalmology if used. Screen for comorbid pain syndromes.


Epidemiology / Risk Factors

  • Risk factors vary by condition and patient profile

Investigations

TestRole / RationaleTypical FindingsNotes
CBCBaseline hematologyAbnormal counts
BMPElectrolytes/renalDerangements

Stepwise Management

StepInterventions
1Education, diet, bladder training
2Pelvic floor PT
3Oral meds (amitriptyline/hydroxyzine/others)
4Intravesical agents/Botox
5Neuromodulation; pain clinic referral

Pharmacology

MedicationMechanismOnsetRole in TherapyLimitations
NitrofurantoinRibosomal damageHoursUncomplicated cystitisAvoid in pyelo
TMP-SMXFolate antagonismHoursAlternativeHyperkalemia

Prognosis / Complications

  • Prognosis depends on severity, comorbidities, and timeliness of care

Patient Education / Counseling

  • Explain red flags and when to seek emergent care.
  • Reinforce medication adherence and follow-up plan.

References

  1. AUA IC/BPS Guideline — Link