Interstitial cystitis (commonly abbreviated to "IC") is a urinary bladder disease of unknown cause characterised by pelvic and intense bladder pain, urinary frequency (as often as every 10 minutes), pain with sexual intercourse, and often pain with urination. IC affects both men and women of all walks and stages of life, however it is far more common in women. Though rare over 700,000 patients in the United States alone have IC and the overall number worldwide most likely exceeds one million.

The organ that stores urine.

Interstitial Cystitis as related to Bladder