Urodynamic tests for urinary incontinence are measurements taken to evaluate your bladder's function and efficiency. The actual tests done vary from person to person.
Some urodynamic tests are relatively simple and can be done in a doctor's office; other tests require expensive and sophisticated instruments to measure the amount of pressure experienced by the bladder and urethra.
Continued here: http://www.webmd.com/urinary-incontinence-oab/urodynamic-tests-for-urinary-incontinence
When a patient has a urinary problem, the doctor may use a cystoscope to see the inside of the bladder and urethra.
Continued here: http://en.wikipedia.org/wiki/Cystoscopy