18/01/2026
Blood in your urine (hematuria) is a symptom that should never be ignored. It can range from harmless causes to serious conditions, so professional medical evaluation is essential.
What is blood in urine?
Hematuria means red blood cells are present in your urine. There are two types:
• Gross (visible) hematuria — Urine appears pink, red, brown, or cola-colored. Even a small amount of blood can cause this.   
• Microscopic hematuria — Blood is only detectable under a microscope during a urine test, with no visible color change.  
Note: Red or pink urine isn’t always blood. Foods (beets, berries, rhubarb), certain medications, or food coloring can mimic it.
Common causes
Many factors can cause hematuria, including:
• Urinary tract infections (UTIs) or kidney infections
• Kidney or bladder stones
• Enlarged prostate (in men)
• Kidney disease or glomerular disorders
• Vigorous exercise (sometimes temporary)
• Medications (e.g., blood thinners)
• Injury to kidneys or urinary tract
• More serious issues like bladder, kidney, or prostate cancer
• Inherited conditions (e.g., sickle cell anemia)    
When to see a doctor
Seek medical attention right away if:
• You see visible blood in your urine (even once)
• You have pain, fever, chills, nausea, vomiting, or difficulty urinating
• There are blood clots or you can’t urinate
Even without symptoms, get checked—early detection matters, especially to rule out serious causes like cancer.    
Your doctor may start with a urine test, followed by imaging (CT scan, ultrasound) or cystoscopy if needed.
