Blood in the urine—known medically as hematuria—is not a condition itself but a symptom of an underlying issue. For women in Naperville, this symptom can appear suddenly and be alarming, especially if there’s no pain or other signs.
Sometimes the blood is visible (gross hematuria), while at other times it’s only detected through a lab test (microscopic hematuria).
It’s important not to ignore this symptom. While in some cases the cause may be harmless, in others it may signal urinary tract infections (UTIs), kidney problems, or bladder inflammation. Early diagnosis leads to faster treatment and fewer complications.
Common Causes of Blood in Female Urine
Blood in the urine—whether visible or detected on a lab test—can result from a variety of causes specific to women. In Naperville, the most frequent culprits are urinary tract infections (UTIs) and bladder inflammation (cystitis).
These conditions irritate the urinary lining, making it fragile and prone to bleeding during urination. Women are more prone to such infections due to their shorter urethra, which allows bacteria to reach the bladder more easily.
Other causes include kidney stones, physical trauma, exercise, or hormonal changes. Sometimes, what appears to be blood in the urine may actually be vaginal bleeding or menstrual contamination, which is why accurate testing is essential.
Typical causes include:
- Urinary tract infections (UTIs)
- Cystitis or bladder inflammation
- Kidney stones or infections
- Vaginal contamination during urination
- Physical activity (exercise-induced hematuria)
In rarer cases, blood in the urine may relate to kidney disease, trauma, or tumors, which is why professional evaluation is always recommended.

Symptoms That Often Accompany Hematuria
When women experience blood in their urine, it’s usually accompanied by other symptoms that help identify the underlying issue. Common signs include burning during urination, frequent urges to pee, lower abdominal discomfort, and cloudy or foul-smelling urine. In more severe cases, symptoms may also include fever, chills, or back pain, which can suggest a kidney infection.
These symptoms, especially when combined with hematuria, should prompt immediate evaluation at a clinic like 1st ChoiceMed in Naperville.
- Burning or pain during urination
- Frequent urge to urinate
- Cloudy or foul-smelling urine
- Pelvic pressure or discomfort
- Lower back or side pain
If you’re experiencing these symptoms, it may indicate a UTI or bladder inflammation—both of which are easily treated at a walk-in clinic like 1st ChoiceMed.
Most Common Infections That Cause Hematuria
The most common infections that lead to blood in the urine for women in Naperville are urinary tract infections (UTIs), bladder infections (cystitis), and kidney infections (pyelonephritis).
These infections irritate the lining of the urinary tract, causing it to swell and bleed. UTIs are especially common in women due to anatomical factors, while kidney infections tend to cause more severe symptoms like fever and back pain.
1. Urinary Tract Infections (UTIs)
UTIs occur when bacteria enter the urethra and spread upward into the urinary tract. Frequent urination, burning, and cloudy urine often accompany the blood.
2. Cystitis (Bladder Infection)
Cystitis causes pelvic pain, urgency, and blood-tinged urine, especially when left untreated for too long.
3. Kidney Infections (Pyelonephritis)
A more serious condition, kidney infections often cause back pain, fever, and visible blood in urine, requiring immediate medical attention.
Menstrual Blood Can Be Mistaken for Hematuria
It’s common for menstrual blood to be mistaken for blood in the urine, especially during sample collection. In women, blood from the vaginal area can mix with urine in the toilet or on the test strip, making it appear as though it’s coming from the urinary tract.
This is why providers in Naperville often ask whether the patient is menstruating and may request a repeat test after the cycle ends. To ensure accuracy, visit a clinic like 1st ChoiceMed for proper evaluation and testing.
1. Timing of Sample Collection
Samples collected during menstruation may contain traces of blood not related to the urinary tract. Providers may request a new sample at the end of the cycle.
2. Symptoms Still Matter
If symptoms like burning or urgency are present, it may still be a urinary issue, not just menstrual contamination.
3. Testing Clarifies the Source
Urinalysis and pelvic exams help rule out vaginal sources and confirm if the blood is coming from the urinary tract.
Can Lifestyle and Activity Levels Cause Blood in Urine?
Yes, certain lifestyle habits and physical activities can contribute to temporary blood in the urine, especially in otherwise healthy women.
Strenuous exercise, such as long-distance running or heavy lifting, can cause bladder irritation or minor trauma, resulting in a condition known as exercise-induced hematuria. Additionally, low fluid intake may lead to concentrated urine, making the bladder lining more sensitive and prone to bleeding.
Other factors, such as frequent sexual activity, inadequate hydration, or prolonged periods of sitting, can also affect urinary health.
1. Exercise-Induced Hematuria
Strenuous workouts or long-distance running can irritate the bladder and cause short-term bleeding.
2. Dehydration and Diet
Low fluid intake can cause the body to concentrate urine and increase bladder sensitivity, which may sometimes lead to microscopic hematuria.
3. Sexual Activity
Frequent sexual activity may cause mild trauma or bladder irritation, especially if UTIs are common.
How Do Clinics in Naperville Diagnose the Cause?
Clinics in Naperville, such as 1st ChoiceMed, employ a step-by-step approach to accurately identify the cause of blood in a woman’s urine. Diagnosis typically begins with a urinalysis, which examines for the presence of red and white blood cells, bacteria, and protein levels.
If infection is suspected, a urine culture is done to identify the specific bacteria involved. For more complex or unexplained cases, providers may order imaging tests like ultrasounds or CT scans to look for kidney stones, tumors, or structural problems.
1. Urinalysis and Urine Culture
A basic test that examines red blood cells, bacteria, and white blood cells, indicating potential infection or injury.
2. Imaging Tests (Ultrasound, CT Scan)
Used if infections are ruled out, these tests check for kidney stones, tumors, or internal damage.
3. Cystoscopy for Complex Cases
If bleeding is unexplained, a urologist may perform a cystoscopy to view the inside of the bladder.
See a Doctor
Even if the bleeding is light or goes away quickly, it’s critical to get checked. Any unexplained blood in the urine warrants a medical evaluation, especially for women over 40 or those with a history of urinary issues.
You should seek care if:
- Blood is visible in the toilet or on the tissue
- You have pain, fever, or nausea
- The bleeding happens more than once
- You notice changes in your urinary habits
Quick action can rule out severe conditions and bring peace of mind.
Hematuria: Sign of Something Serious
While hematuria is often caused by common issues, such as infections or mild irritation, it can occasionally signal a more serious underlying condition—especially when it’s painless or persistent. In women over 40, bladder cancer, kidney disease, or urinary tract tumors are rare but essential possibilities to consider.
These conditions may not cause pain right away, making blood in the urine the only early warning sign. Additionally, chronic or recurrent hematuria may indicate underlying kidney inflammation or damage.
That’s why it’s critical to have any instance of blood in your urine evaluated—even if it happens just once.
1. Bladder or Kidney Cancer
Rare but possible—especially in women over 40 or with a smoking history. Painless blood in urine should never be ignored.
2. Kidney Disease
Conditions like glomerulonephritis may cause microscopic amounts of blood and protein to appear in the urine during testing.
3. Medication Side Effects
Some blood thinners or anti-inflammatory drugs may irritate the bladder lining, leading to minor bleeding.
Further Information:
Urinary tract-related symptoms
Learn More from Mayo Clinic
For an expert breakdown on hematuria in women:
FAQs
What does blood in the urine usually mean for women?
It could signal a UTI, cystitis, kidney stones, or more serious urinary conditions.
Is it normal to have blood in the urine without pain?
No. Even painless hematuria should be checked, as it may be related to kidney or bladder conditions.
Can my menstrual cycle cause blood to show in my urine?
Yes, sometimes menstrual blood can contaminate the sample, but testing helps clarify this.
Should I be concerned if it happens only once?
Yes. Even a single episode of hematuria should be evaluated by a healthcare provider.
Can dehydration cause blood in urine?
Rarely. Dehydration may concentrate urine, but does not usually cause bleeding.
How is hematuria diagnosed?
Typically, this involves a urinalysis, which may be followed by imaging or a urine culture at a medical clinic.
Could exercise cause this?
Yes, intense physical activity can sometimes lead to harmless, short-term hematuria.
How is it treated?
Treatment depends on the cause—infections may require antibiotics, stones may need imaging, and other causes vary.
Is blood in urine related to bladder cancer?
In rare cases, persistent or painless blood in the urine could be a sign of a serious condition. Screening helps rule this out.
Where can I get checked in Naperville?
Visit 1st ChoiceMed’s Naperville clinic for fast testing and answers.