Can you have hematuria for no reason?

“Idiopathic” means that no specific cause can be found for blood in the urine. Idiopathic hematuria can run in families, and is called familial idiopathic hematuria. When there is not a family history of kidney failure and other medical tests are negative; usually, no treatment is needed.

What is persistent hematuria?

Persistent isolated microscopic hematuria is considered a typical but benign finding of thin membrane nephropathy (TBMN), in which collagen abnormalities of the glomerular basement membrane confer some fragility responsible for microhematuria not related to the progression of the disease,16 although this view may be …

When is hematuria serious?

More serious causes are swelling of the kidney, urethra, bladder or prostate, or cancer of the kidney or bladder. Only a small percentage of people with microscopic hematuria have cancer. A history of smoking raises the risk of bladder or kidney cancer.

What does blood 1+ in urine mean?

In hematuria, your kidneys — or other parts of your urinary tract — allow blood cells to leak into urine. Various problems can cause this leakage, including: Urinary tract infections. These occur when bacteria enter your body through the urethra and multiply in your bladder.

How to tell if you have isolated hematuria?

Isolated Hematuria. Urine may be red, bloody, or cola-colored (gross hematuria with oxidation of blood retained in the bladder) or not visibly discolored (microscopic hematuria). Isolated hematuria is urinary RBCs without other urine abnormalities (eg, proteinuria, casts).

What kind of disease can cause hematuria in urine?

Hematuria is usually caused by a genitourinary disease although systemic diseases can also manifest with blood in urine. Hematuria is divided into glomerular and non-glomerular hematuria to help in evaluation and management.

What are the causes of transient microscopic hematuria?

Most cases involve transient microscopic hematuria that is self-limited and idiopathic. Transient microscopic hematuria is particularly common in children, present in up to 5% of their urine samples. There are numerous specific causes (see table Some Specific Causes of Hematuria ).

Is it normal to have red urine after a cast?

Urine may be red, bloody, or cola-colored (gross hematuria with oxidation of blood retained in the bladder) or not visibly discolored (microscopic hematuria). Isolated hematuria is urinary RBCs without other urine abnormalities (eg, proteinuria, casts). Red urine is not always due to RBCs.