Often, a diagnosis of interstitial cystitis is made by ruling out other conditions that cause similar symptoms, such as urinary tract infections, vaginal infections, kidney stones, and cancer. The doctor will take a medical history and perform a physical exam. You may be asked how often you go to the bathroom, if you feel an urgency to go, and when you experience pain. The following tests may be done:
Urine sample
Cystoscopy. The doctor will insert a long, thin scope (cystoscope) up your urethra to view the inside of your bladder.
An ultrasound or CT scan of the pelvis may be done to rule out other conditions.