When to see your GP
Source: NHS
You should see your GP if you have persistent pelvic pain or you notice a change in your usual pattern of urination. These symptoms can have a number of causes, so it's a good idea to get a proper diagnosis.
Your GP can refer you to a hospital specialist such as a urologist (a specialist in conditions affecting the urinary system) for further tests, such as a cystoscopy (a procedure to examine the inside of the bladder).