Do you sometimes feel like you have difficulty urinating, like a blockage? Or have you noticed a little blood in your urine after an accident? Today we are going to talk about a special X-ray test that doctors do to find out exactly what is causing this. This is called a Retrograde Urethrogram, or RUG for short. Although the name is a bit complicated, it is very simple.
Simply put, what is Retrograde Urethrogram (RUG)?
A Retrograde Urethrogram (RUG) is a special X-ray test that checks the tube through which your urine comes out, the part we medically call the 'urethra', to see if it is working properly and if there is any damage, blockage, or scar tissue.
Simply put, it's like running water through a water pipe to see if there's a blockage somewhere. But instead of water, a special liquid is used to take an X-ray. This test is most often done on men . If you've had an injury to your pelvis or groin, or if your doctor suspects that your urethra is blocked due to scar tissue, this test may be done.
When should I take a RUG test?
This test may sometimes be done in an emergency (for example, after an accident) or to check for ongoing symptoms.
| Opportunity | Description |
|---|---|
| After an accident | If you have had an injury to your pelvic or groin area, are bleeding from the urethra (where urine comes out), or are unable to urinate at all. |
| If there is a suspicion of a narrowing of the urethra | If the doctor suspects that the urethra has become narrowed (urethral stricture) due to some illness, blockage, or injury. |
| Difficulty inserting a catheter | If you are having difficulty inserting a catheter, this test is done to find the cause. |
| Before passing a catheter into the bladder | This test is also done to check for any problems with the urethra before inserting a catheter that goes all the way into the bladder. This is done to determine if it is safe to insert the catheter. |
What can be found in this test?
A RUG exam can help your doctor accurately diagnose several problems related to your urethra.
- Urethral Stricture: Whether the urethra is blocked or narrowed somewhere.
- Blockage of the urethra: Is there any other reason that is blocking the flow of urine?
- Damage to the urethra: For example, the urethra can be checked for rupture, an opening to another area (fistula), or the formation of a small pouch (diverticula) in the wall of the tube.
Is this test painful?
No. A RUG test is not painful . However, you may feel some discomfort during the test and when urinating afterward. If you experience unbearable pain, you should tell the medical staff right away.
How is this test done?
This is a very simple process. You don't need to do much preparation for this. Here's what happens during the test.
1. Positioning: You will be placed on a table under an X-ray machine. You will be asked to keep one leg bent to the side. The medical staff will help you adjust the position as needed.
2. Cleaning: Clean the area around your penis thoroughly with an antiseptic solution (like iodine).
3. Numbness: Next, a topical numbing lubricant is applied to the opening of your penis to numb your urethra. It takes a few minutes for it to take effect.
4. Insertion of the tube: Next, a very small tube is inserted through the opening of your penis and into your urethra a short distance. This is done very gently. If you feel any discomfort at this point, you can tell us.
5. Contrast Injection: Now, using a syringe, a contrast agent is slowly injected into your urethra through the tube. This is what makes your urethra show up clearly on the X-ray images.
6. Taking an X-ray: An X-ray machine takes several pictures as the fluid moves toward the bladder. Sometimes, you may be asked to urinate into a container so that X-ray pictures can be taken while the fluid is leaving your body.
This entire process only takes a few minutes, so there's no reason to be afraid.
What happens after the test?
After the test, you may feel some discomfort when urinating. You may also notice a little blood in your urine. This is normal and will go away completely in about a day.
The most important thing is to drink plenty of water . This will help flush out any remaining contrast from your body through your urine.
Are there any risks involved?
RUG is a very low-risk test, but there are some side effects that can occur very rarely.
- Infection.
- An allergic reaction to the contrast dye used.
- Any damage to the urethra or bladder.
Remember that these things happen very rarely.
How do I find out about the results?
The time it takes for you to receive your results depends on the reason you are having this test.
- In an emergency: If you have an emergency, such as an accident, the doctors will get the results right away and begin the necessary treatment.
- In a normal case: Otherwise, if it was done as a routine test, it could take several days to get the results.
If the results are normal, it means that fluid is flowing through your urethra without any obstruction. If so, your symptoms may be caused by something else. If the results are abnormal, it could indicate that your urethra is damaged, narrowed, or blocked.
Sometimes, if the RUG test alone does not provide enough information, your doctor may recommend a cystoscopy , a test that uses a camera to look inside the urethra.
What time do you want to see the doctor?
If you experience any of the symptoms below after the test, be sure to inform your doctor.
| Symptom | Description |
|---|---|
| Difficulty urinating | If you experience severe pain when urinating, or if you are unable to urinate at all. |
| Prolonged discomfort or bleeding | If there is discomfort or bleeding for more than a day after the test. |
| Signs of infection | If you are showing signs of infection, such as swelling or fever around the penis. |
| Questions about results | If you have any questions or concerns about the results of your test report. |
Take-Home Message
- A Retrograde Urethrogram (RUG) is a simple, low-risk X-ray test that looks for problems in your urethra.
- This can identify blockages, narrowings, or damage caused by accidents in the urethra.
- The test is not painful, but you may feel a little uncomfortable.
- It is normal to have some discomfort and a little blood when urinating for about a day after the test. Drink plenty of water.
- If you have symptoms such as severe pain, inability to urinate, bleeding that lasts more than a day, or fever, talk to your doctor immediately.
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