What it is
- IC/BPS is a diagnosis of symptoms: an unpleasant sensation (pain, pressure, discomfort) perceived to be related to the bladder, associated with lower urinary tract symptoms of more than six weeks, in the absence of infection or other identifiable causes (AUA 2022).
- There are phenotypes. Some people have Hunner lesions (a bladder-centric inflammatory picture). Others have a pelvic-floor phenotype with muscle tenderness. Others have a systemic / widespread-pain picture that clusters with endo, IBS, fibromyalgia, and migraine.
- About 1 in 5 people with IC/BPS report a history of endometriosis (Namugosa et al., 2024). People with both tend to be younger and more likely to have pelvic floor dysfunction, chronic pelvic pain, fatigue, and migraine — a non-bladder-centric phenotype.
- The bladder and pelvic floor share innervation. A hypertonic floor can reproduce almost every IC symptom. That is why pelvic floor PT is the only IC treatment the AUA has given an evidence grade of A — and why Kegels are specifically to be avoided when the floor is tender.
What it can feel like
- Needing to pee 12–20+ times a day, or waking repeatedly at night
- A sharp, burning, or “on-fire” bladder that calms after emptying, then builds again
- Pain with bladder filling, sex, tight clothes, or sitting
- Flares after coffee, alcohol, citrus, tomato, soda, or spicy food
- Negative cultures, short-lived relief from antibiotics, or “your urinalysis is fine”
What you were probably told
- “Your culture is negative, so it is not your bladder.”
- “Cut back on fluids and stop thinking about it.”
- “This is a hygiene problem.”
- “Everyone pees a lot when they’re anxious.”
How it actually gets named
- History and physical, including a pelvic exam that palates the pelvic floor for tenderness, not just the bladder.
- Urinalysis and culture to rule out infection; cytology or cystoscopy when indicated (hematuria, Hunner-lesion suspicion, treatment failure).
- Cystoscopy is not required to diagnose IC/BPS. Hunner lesions, if present, change the treatment path (fulguration / triamcinolone).
- A food-and-flare diary is more useful than another round of antibiotics.
- Screen for overlapping endo, IBS, vulvodynia, and pelvic floor dysfunction. Treating only the bladder often fails.
What tends to help
- Education first. The AUA lists patient education as a first-line treatment, not an afterthought.
- Behavioral strategies: timed voiding, fluid modification, identifying dietary triggers (IC diet is individual — not a forever ban list).
- Manual pelvic floor physical therapy for trigger points and restrictions. Not Kegels. Not “just do your squeezes.”
- Second-line oral options (AUA): amitriptyline, cimetidine, hydroxyzine, pentosan polysulfate (counsel on macular risk with PPS).
- Bladder instillations, hydrodistention in selected cases, Hunner-lesion treatment, and — for refractory Hunner disease — cyclosporine. Intradetrusor onabotulinumtoxin-A appears in the 2025 CUA selected-treatment guideline.
- Investigational agents such as sunobinop (a nociceptin receptor agonist) are in early trials; they are not standard care yet.
Take these into the room
- Have we actually examined my pelvic floor, or have we only cultured my urine?
- Do I have Hunner lesions, and would that change what we try next?
- Should I see a pelvic floor PT before another medication?
- Given my other pelvic diagnoses, who coordinates bladder, bowel, and gyn care?