subject: Cystitis symptoms: When is it time to take notice [print this page] The diagnosis of cystitis is often done on an exclusion basis, i.e., doctors check for all kinds of diseases and then, if neither is found, the conclude that the patient is suffering from the former. Similar diseases that feel like cystitis are tuberculosis of the bladder, inflammation of the bladder bladder cancer, kidney stones, endometriosis, mild urinary tract infections, chronic prostate infections and sexually transmitted diseases. To identify whether or not a person is suffering from this disease, the doctor is supposed to take a history and do a physical examination of the pelvic, bladder and kidney areas, along with tests like urinalysis, cystoscopy, urine culture, bladder wall biopsy, and an examination of the secretions of the male prostate gland. Among these, the cystoscopy is the most important test as the doctor can see ulcerations of the bladder wall, thereby confirming the ailment.