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What Happens after the Test?

Up to 48 hours later, you may feel discomfort. Your urine may be a little pink. Still, you can return to normal activities right after this test.

If the pain doesn’t go away, if you get a fever, or if your urine turns bright red, tell your health care provider.

Other Side Effects

While a urethrogram is generally safe, some people react to the dye. The dye mostly stays outside the body (inside the urethra), so reactions are not common.

Minor reactions could be hot flashes, upset stomach or vomiting. These are often treated with antihistamines. Rarely, problems like a UTI (urinary tract infection) can occur.