Interstitial cystitis


Interstitial cystitis is a long-term (chronic) inflammation of the bladder wall.

Alternative Names

Cystitis - interstitial; IC


Interstitial cystitis (IC) is a painful condition due to inflammation of the tissues of the bladder wall. The cause is unknown.

IC is often misdiagnosed as a urinary tract infection. Patients can go years without a correct diagnosis. On average, there is about a 4-year delay between the time the first symptoms occur and the diagnosis is made.

The condition is most common around ages 30 to 40, although it has been reported in younger people. Women are 10 times more likely to have IC than men.


Common symptoms of interstitial cystitis include:

Many people who have long-term interstitial cystitis are also depressed because of the pain and changes to their lifestyle.   

Exams and Tests

The diagnosis is made by ruling out other causes (such as sexually transmitted disease, bladder cancer, and bladder infections). Tests include:


There is no cure for IC, and there are no standard treatments that are known to be effective for most patients. Results vary from person to person. Treatment is based on trial and error until you find relief.

Combination therapy with medicines may help, including:

Other therapies may include:

Some patients find that changes in their diet can help control symptoms. The idea is to avoid foods and beverages that can cause bladder irritation. Below are some of the foods that the Interstitial Cystitis Association says may cause bladder irritation:

Experts suggest that you do not stop eating all of these foods at one time. Instead, try eliminating one at a time to see if that helps relieve your symptoms.

Support Groups

For additional information and support, see interstitial cystitis support groups.

Outlook (Prognosis)

Treatment results vary. Some people respond well to simple treatments and dietary changes. Others may require extensive treatments or surgery.

When to Contact a Medical Professional

Call your health care provider if you have symptoms of interstitial cystitis. Be sure to mention that you suspect this disorder. It is not well recognized or easily diagnosed.


Hanno PM. Painful bladder syndrome/interstitial cystitis and related disorders. In: Wein AJ, ed. Campbell-Walsh Urology. 10th ed. Philadelphia, Pa: Saunders Elsevier;2011:chap 12.

Lentz GM. Urogynecology: Physiology of micturition, voiding dysfunction, urinary incontinence, urinary tract infections, and painful bladder syndrome. In: Lentz GM, Lobo RA, Gershenson DM, Katz VL, eds. Comprehensive Gynecology. 6th ed. Philadelphia, Pa: Mosby Elsevier; 2012:chap 21.

Cody JD, Nabi G, Dublin N, McClinton S, Neal DE, Pickard R, Yong SM. Urinary diversion and bladder reconstruction/replacement using intestinal segments for intractable incontinence or following cystectomy. Cochrane Database Syst Rev. 2012;2:CD003306. DOI: 10.1002/14651858.CD003306.pub2.

Review Date: 11/9/2012
Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, Shool of Medicine, University of Washington; and Scott Miller, MD, Urologist in private practice in Atlanta, Georgia. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.
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