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Occult Blood in Urine: Causes, Symptoms, and Treatment


Laboratory cup to test occult blood in urine

Occult blood in urine, also called hematuria, occurs when blood enters your urine, but it's so minimal that you can't see it. It can be a bit alarming, but it's important to know what causes it, what signs to look for, how to diagnose it, how to treat it, and how to prevent it in the future. Understanding this condition will help you manage it and maintain your health.


What is Occult Blood in Urine?

Occult blood in urine occurs when there's blood in your urine that you can't see with your eyes. This condition can be detected through lab tests, such as urine tests, which reveal the presence of red blood cells in your urine. Occult blood in urine can occur in both men and women, and it can be caused by various factors, such as infections, kidney stones, or other health problems.


Causes of Occult Blood in Urine

Occult blood in urine, also called microscopic hematuria, is when there is blood in your urine, but you can't see it with your eyes. There are many things that can cause occult blood in urine, including:


Kidney Stones

Kidney stones are small, hard deposits that can form inside the kidneys. These stones can cause a range of problems, from mild discomfort to severe pain. One of the potential complications of kidney stones is bleeding in the kidneys. This bleeding can lead to the presence of blood in the urine, known as occult blood. The presence of occult blood in the urine can be an indication of kidney damage or another underlying condition.


Infections

Bacteria can cause infections in the kidneys or urinary tract, which can make blood leak into the urine. These infections can lead to occult blood, which means that there is blood in the urine that you can’t see with the naked eye.


Cancer

Bladder cancer, kidney cancer, or other types of cancer can cause bleeding in the urinary tract. This can make blood get into the urine without being able to be seen with the naked eye. This is known as occult blood in the urine and it can be caused by different types of cancer.


Prostate Cancer

In men, prostate cancer can sometimes cause bleeding in the prostate gland, which is a gland that helps make semen. This bleeding can cause blood to be present in the urine, but the amount of blood may be so small that it cannot be seen without the use of special medical tests. This hidden blood in the urine is called occult blood.


Vasculitis

Vasculitis is a condition where the blood vessels become inflamed. This can cause bleeding in the kidneys and bladder. This can lead to blood in the urine that you can’t see with your eyes. If someone has vasculitis, it can cause this.


Kidney Disease

When your kidneys are not healthy or are injured, they can start to bleed internally, which can cause blood to show up in your urine without you noticing. This is called “occult blood” which just means that it’s too small to be seen by the naked eye.


Trauma

When your kidneys or bladder get hurt or damaged, they can start bleeding, and that blood might show up in your urine without you even knowing it. It's called "occult blood," which just means it's not visible to the naked eye. This can happen if you experience a trauma, like a fall or a car accident, for example.


Urinary Tract Anomalies

If you were born with a condition that affects your urinary tract, such as an issue with your ureter or if your ureter is not in the right place, it can cause bleeding in your kidneys or urinary tract. This blood can appear in your urine, but you might not see it without a microscope. This is called "occult blood."


Medications

There are some medicines, like antibiotics, anti-inflammatory drugs, and blood thinners, that can cause bleeding in your kidneys and bladder. And that blood can show up in your urine, but you might not be able to see it with the naked eye. That's what's known as "occult blood."


Systemic Diseases

Some illnesses that affect the whole body, like rheumatoid arthritis, lupus, or vasculitis, can make your kidneys and bladder start to bleed. This can cause blood to show up in your pee without you even knowing. This is called “occult blood,” which means you can’t see it, but it can be found through tests.


Sickle Cell Disease

People with sickle cell disease have a higher chance of developing kidney problems and bleeding in the kidneys and bladder. This bleeding can make blood show up in their urine without them even knowing it. It's called "occult blood." Sickle cell disease can cause a lot of problems in the body, and one of those problems is bleeding in the urinary tract.


Pregnancy

If you're pregnant, you might sometimes have blood in your urine. This happens because the baby inside you can put a lot of pressure on your kidneys and bladder. This can make it easier for small amounts of blood to get into your urine. It's a common symptom of pregnancy, but it can also be a sign of other problems, so it's a good idea to talk to your doctor if you notice blood in your urine when you're pregnant.


Cystoscopy

Cystoscopy is a procedure where a doctor uses a special tool called a scope to look inside your bladder and the tube that connects your bladder to the outside of your body (the urethra). The scope is like a small camera with a light, and it lets the doctor see what’s going on inside. During the procedure, a little bit of bleeding can happen, which can cause small amounts of blood to show up in your urine. This can happen even if you can’t see the blood with your eyes.


Tumors

Sometimes, cancers that start in other parts of the body, like the colon or ovaries, can spread to the urinary tract (the bladder, kidneys, and urethra). This can cause bleeding because these tumors can grow and bleed. This type of bleeding can be hard to detect with the naked eye, but a doctor can find it by testing your urine for blood.


Symptoms of Occult Blood in Urine

Occult blood in urine can cause some symptoms that you might notice. These symptoms might be subtle and hard to notice at first, but some common ones include:


Pink or reddish discoloration of the urine

Even though the blood is not visible to the naked eye, it can still change the color of your urine. Sometimes the urine can become pink or reddish, which can be a sign of blood in the urine. If you notice that your urine is a different color than usual, it is important to talk to your doctor.


Dark or tea-colored urine

When there is blood in the urine, it can change the color of the urine to make it darker or more concentrated. This can make the urine look like tea or another dark color. If you notice that your urine is a darker color than usual, it is important to talk to your doctor.


Increased frequency of urination

When you have blood in your urine, your body might try to get rid of it by making you urinate more often than normal. This can make you feel like you have to go to the bathroom all the time, even if you don't actually have to go.


Painful urination

When there's blood in your urine, it can make it hurt when you go to the bathroom. This is because the blood can irritate and inflame the urinary tract, which can cause pain when you try to urinate.


Abnormal urine color or odor

Blood in your urine can change its appearance and smell. It might look cloudy or murky, or it might have a strong odor. That's because the blood can affect the way your urine looks and smells.


Frequent or recurring UTIs

If you have occult blood in your urine, it can make it more likely that you'll get urinary tract infections (UTIs) over and over again. This is because the blood can make it easier for bacteria to grow in the urinary tract, which can lead to infections.


Chills and fever

Sometimes, when you have blood in your urine that you can't see, it can make you feel cold and feverish. This is because the blood can cause bacteria to grow in your urinary tract, which can make you sick. This can make you feel cold and hot at the same time, like you have a fever.


Abdominal pain

Sometimes, if you have occult blood in your urine, it can make your stomach, side, or back hurt. This can happen if the blood is caused by something like kidney stones or a kidney infection. If you have blood in your urine and your stomach, side, or back hurts, it's a good idea to see a doctor to find out what's wrong.


Nausea and vomiting

When there is blood in the urine, it can irritate the urinary tract, which includes the organs and tubes that carry urine out of the body. This irritation can cause nausea and vomiting as the body tries to remove the source of discomfort. The irritation can be caused by infections, tumors, or blockages in the urinary tract.


Fatigue and weakness

When there's occult blood in your urine, it can cause the kidneys to get damaged and inflamed over a long period of time. This damage and inflammation can make you feel tired and weak. It's like when you're sick and your body is fighting off an infection. It uses up a lot of energy, which makes you feel tired and weak.


Diagnosis of Occult Blood in Urine

Diagnosing occult blood in urine is difficult because you can't see it. But doctors can use your medical history, a physical check-up, and lab tests to find it. Here are some tests that might be used:


1. Urinalysis

One way to find occult blood in urine is with a urine test called a urinalysis. It checks to see if there are any changes in the urine's color, smell, or other things. It might not always catch occult blood in urine, but it's a good place to start.


2. Microscopic examination

A microscope is a tool used to look at things that are too small to see with the naked eye. In this case, a microscope is used to examine a sample of urine for red blood cells, white blood cells, and other small particles that are hard to see.


3. Dipstick test

A special type of paper known as a dipstick is dipped into a sample of urine. If there is any blood or protein present in the urine, the dipstick will change color, indicating the presence of these substances. This test is a quick and easy way to screen for certain medical conditions that may be associated with blood or protein in the urine.


4. Chemical tests

Chemical tests, like the latex agglutination test or the peroxidase test, can detect blood in urine by checking for hemoglobin or myoglobin. These substances are found in the blood and can be used to detect the presence of blood in urine.


5. Imaging tests

Some imaging tests, like X-rays, CT scans, or MRI scans, can help doctors see inside the kidneys and urinary tract. They can use these images to check for any problems with the structure of those parts of the body.


6. Cystoscopy

A cystoscopy is a procedure where your doctor uses a special tool called a scope to look inside your bladder and urethra. This can help your doctor find any problems or bleeding in your urinary tract. The scope is like a long, thin tube with a camera at the end, which your doctor can use to see inside your body.


7. Urine culture

A urine culture is a test that checks for bacteria or other germs in your urine. It can help find out if you have a urinary tract infection (UTI) or another type of infection that could be causing blood to be in your urine, even if you can't see it.


8. Renal function tests

Renal function tests are tests that check how well your kidneys are working. These tests look at the amount of certain substances, like blood urea nitrogen (BUN) and creatinine, in your blood. These tests can help find out if you have any kidney disease that could be causing blood to be in your urine.


Treatment Options for Occult Blood in Urine

The treatment for occult blood in urine depends on what's causing it. Since occult blood is a symptom of a problem, not a problem itself, treating the cause is important. Here are some potential treatments based on what might be causing it:


1. Urinary Tract Infections (UTIs)

If a urinary tract infection (UTI) is causing blood in your urine, your doctor will give you antibiotics to get rid of the infection. Drinking lots of water and keeping your body clean can also help you get better.


2. Kidney Stones

If you have small kidney stones, they may pass out of your body on their own. Your doctor may give you pain medicine and tell you to drink lots of water to help them pass. If you have bigger stones, you may need a treatment called lithotripsy to break the stones into smaller pieces. Sometimes, surgery may be needed to remove the stones.


3. Prostate Issues

If you are a man with an enlarged prostate, your doctor may give you medicine to make your prostate smaller or to help you urinate better. If your enlarged prostate is very bad, you may need surgery to fix the problem.


4. Glomerulonephritis

Glomerulonephritis is a disease that makes the kidneys sick. It can be treated by using medicines to treat the things that are causing it, like infections or immune system problems. These medicines can be things like steroids or medicines that make the immune system less active.


5. Medications

If the hematuria (presence of blood in urine) is linked to certain medications, your doctor may change the dosage of the medication or suggest other medications that are less likely to cause bleeding.


6. Trauma or Injury

If you have a trauma or injury that causes bleeding in the urine, you will need rest and monitoring. The doctor may recommend supportive care to help with healing. If the injury is severe, surgery may be needed to fix the problem.


7. Cancer

If blood in the urine is caused by bladder, kidney, or prostate cancer, treatment may involve surgery, chemotherapy, radiation, or targeted therapies to fight the cancer. These options depend on how far the cancer has spread and where it is located.


8. General Care

Exercise-induced bleeding in the urine, called hematuria, usually gets better on its own with enough rest and by reducing physical activities. In these cases, no special medical treatment is needed, and the body heals itself.


Preventing Occult Blood in Urine

To prevent occult blood in urine, you can take steps to stay healthy and deal with things that might cause blood in urine. These steps can help reduce the chances of having blood in your urine:


1. Stay Hydrated

Drinking lots of water is important because it helps clean out the urinary tract. This can lower the risk of infections, kidney stones, and other urinary problems. Staying well-hydrated keeps the urinary system working well and supports overall health by keeping body fluids balanced, regulating temperature, and helping move nutrients around.


2. Practice Good Hygiene

Good hygiene is important to protect against urinary tract infections (UTIs). This means being clean, especially after going to the bathroom or having sex. Germs can get into the urinary system during these activities and cause infections, but if you practice good hygiene, you can prevent this from happening.


3. Avoid Smoking

Smoking can make you more likely to get cancer in your bladder and kidneys, which can cause blood to come out when you urinate. Quitting smoking can help prevent these cancers from happening, so it's important to stop smoking as soon as you can.


4. Maintain a Healthy Diet

It's important to eat a healthy diet. Eating lots of fruits, vegetables, and whole grains is good for your kidneys and overall health. It's also good to stay away from too much salt, which can make it more likely for you to get kidney stones.


5. Exercise Moderately

Regular exercise is important for staying healthy, but it's also important to pay attention to your body and not overdo it. Doing too much or very intense exercise can sometimes cause blood in your urine, which means you might be pushing yourself too hard.


6. Manage Chronic Conditions

If you have a health problem that lasts for a long time, like diabetes or high blood pressure, you should take your medicine, eat healthy, and see the doctor often. This can help keep your kidneys healthy.


7. Regular Checkups

Regular checkups are very important for staying healthy. These checkups should include tests like urine analysis, which can help find health problems early. Finding issues early means you can get treatment sooner, which helps prevent serious health problems later on.


8. Avoid Overuse of Medications

To keep your kidneys healthy, you should be mindful of your daily habits. Try to drink plenty of water, eat a balanced diet, avoid smoking, and be careful when taking any kind of medication, especially painkillers or anti-inflammatory drugs. It's also important to go to the doctor regularly for checkups and tests, as this can help you catch any problems early on and stop them from getting worse.


When to See a Doctor

If you have occult blood in your urine, it might not be a big problem, but there are some signs that you should go to the doctor right away. You should go to the doctor if you:


  • Persistent Blood in Urine: If you see blood in your urine more than once, it could be a sign of something serious. Even if it’s just a little bit of blood, it’s important to find out why it’s there. You should talk to your doctor about it so they can help you figure it out.

  • Visible Blood: If blood in the urine becomes visible to the naked eye, it may suggest a more significant issue requiring immediate evaluation.

  • Accompanying Pain: If you’re seeing blood in your urine, it could also hurt in your back, belly, or when you urinate. This could mean that you’re dealing with kidney stones, an infection, or something else that’s wrong inside your body. It’s important to talk to your doctor if you’re feeling this kind of pain.

  • Changes in Urination: If you’re seeing blood in your urine, it could also hurt in your back, belly, or when you’re going to the bathroom. This could mean that you’re dealing with kidney stones, an infection, or something else that’s wrong inside your body. It’s important to talk to your doctor if you’re feeling this kind of pain.

  • Fever or Chills: If you’re seeing blood in your urine and you’re also feeling hot or cold and shivering, this could mean that you have an infection that needs to be treated right away. Infections can cause blood in your urine and make you feel feverish or chilled. If you’re feeling this way, it’s important to see a doctor as soon as you can so they can give you medicine to treat the infection.

  • Family History: If other people in your family have had kidney problems or cancers in their urinary system, even small symptoms should be checked out by a doctor. It’s better to be safe than sorry, especially if you’re seeing blood in your urine.

  • Previous Diagnosis: If you've had problems with kidney stones, infections, or cancers in the past, it's important to go to the doctor if you start seeing blood in your urine again. Even if it doesn't seem like a big deal, it could mean something serious.


If you see blood in your urine or have symptoms like pain, changes in urination, or ongoing discomfort, don't delay in getting medical advice. At Volusia Medical Center, our team of doctors and nurses is ready to offer the care and knowledge you need. Contact us today to talk about your symptoms and schedule a consultation. Let us help you find answers and solutions for your health and well-being.


Conclusion

Occult blood in urine can be caused by different things, from harmless to serious. It's important to find and treat the cause early to avoid problems. If you notice signs or are told you have this, talk to your doctor for the right tests and treatment.



FAQs


1. What does it mean if occult blood is found in my urine?

  • If occult blood is found in your urine, it means that there are small amounts of blood in your urine that you can’t see with your eyes. This could be a sign of a problem like an infection in your urinary tract or a problem with your kidneys.

2. Can certain foods or medications cause occult blood in urine?

  • Yes, some medicines like NSAIDs (like ibuprofen) or anticoagulants (like aspirin), and some foods (like beets) can cause blood in your urine. It's not always a bad thing, but it's important to know if you have it.

3. Is occult blood in urine always a sign of a serious condition?

  • Occult blood in your urine doesn't always mean that something is really wrong. Sometimes, it can just be from things like exercise, and not a sign of something serious.

4. Is occult blood in urine a sign of cancer?

  • It can be a sign of cancer, but not always. There are many other reasons why blood might be in your urine that are not cancer, like infections or kidney stones.

5. Can occult blood in urine be treated at home?

  • If you have occult blood in your urine, how it gets treated depends on what is causing it. Drinking lots of water can sometimes help, but you should always talk to your doctor to find out the best way to treat it.

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