UroToday.com - Interstitial cystitis (IC) is not “one disease.” It is a sum of many different symptoms, and every patient needs to be treated as unique. Success can be achieved only if there is good collaboration between the patient, who needs to make lifestyle changes, the physicians and physical therapists.What IC patients have in common is varying degrees of voiding dysfunction. They are miserable, and often no one has acknowledged that they have a real problem.