RBCs in the urine: causes, why red blood cells end up in pee

RBCs in the urine: causes, why red blood cells end up in pee

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All of us, at least once in our lives, have undergone thecomplete urinalysis.

Complete urine examination it means the physical and microscopic chemical examination of our pee. In Great Britain, as in Germany, theurinalysisit is generally performed with somemore indicationgiven by the nephrologist. Here in Italy, those who analyze urine do not know what to "intercept" and often, whensomething wrong, the result of the examination shows the wordingred blood cells in the urine. But what are red cells? Thered blood cells are red blood cells, that is, the corpuscular component of our blood. Now comes another question: how did i red blood cells in the urine? The causes can be the most disparate. Let's try to analyze them together.

Red blood cells in the urine: hematuria

THERed blood cellsthey are those that carry oxygen in the blood and give it the classic red color.

Inphysiological conditions(good health) everyone has aboutfour red blood cells per section of urine examined. As this number increases, the situation may no longer bephysiologicaland it could indicate a health problem.

When theblood in the urineis visible to the naked eye, it is of fundamental importance to contact your doctor to carry out the necessary checks.

The presence ofred blood cells in the urineis definedhematuria. We talk aboutmacroscopic hematuria (visible to the naked eye) e microscopic hematuria(detectable only with laboratory analysis). When they are presentred blood cells in the urine, whether in a condition of microscopic or macroscopic hematuria, we speak ofred blood cells.

RBCs and albumin: kidney disease

Sixred blood cells in the urineare present in conjunction with thealbumin, thecauseit could be attributable to kidney inflammation. Albumin, under normal conditions, should not be present in our pee at all. The presence ofalbumininurineit is a defined anomalyalbuminuria. Albuminuria is an indication of a kidney malfunction so they pass into theurinebeRed blood cells(red blood cells) thatalbumin. In this and other contexts, in the case ofred blood cells in the urineit may be advisable to consult a specialist. Which doctor? In this context, a nephrologist.

RBCs in the urine: causes

Kidney infection is not the only possible infection that can cause the presence of red blood cells in the urine. Thecausesmore frequent thanred blood cells in the urineI'm:


Kidney infection or more simply a urinary tract infection can cause an increase in the number ofred blood cells in pee. Even an infection of the bladder or related systems could induce an increase inred blood cells in the urine.

When the infection is localized to the urinary tract, a symptom is usually related: burning at the time of urination.


Crystallized stones in the urinary tract can create resulting irritationred blood cells in the urine. We talk about:

  • bladder stones
  • urethral
  • kidney

Kidney problems

The kidneys are closely related to our urinary tract. What are the kidneys used for? To filter metabolic waste products from the blood and convey them into the bladder to allow their expulsion through urine. Any kidney problem can cause aincrease in red blood cells in the urine. Thered blood cells in the urinerelated to the kidneys can be given by primary or secondary kidney disease, including thediabetes mellitus.

Acausemore trivial than can justify the presence ofblood in the urineosno ikidney stonesas well as iurethral stones.

Side effects of drugs

If you are on medication, you may want to consider this. Read the package leaflet and see if any side effects includered blood cells in the urine. Drugs with a blood-thinning function such as warfarin or the more common aspirin can causehigh red blood cells in the urine.


It is undoubtedly thecausewhich most frightens. Thered blood cells in the urinecan be related to different types ofmalignant tumor. Thered blood cells in the urinethey can besymptomof prostate, kidney, bladder cancer ... Before alarming, it is important to consider the general clinical picture. As is clear, the causes are many and the only onehematuriacan tell you very little.

Other diseases

Lupus as well as other autoimmune diseases can lead to the presence ofhematuria(red blood cells in the urine). Other causes may be sickle cell anemia and Alport syndrome.

What to do?

Exclude the idea of ​​running acareself-prescribed,the information that the internet provides you can be useful for general knowledge and get you an idea of ​​the complete picture, but it can never replace a medical opinion. How are red blood cells treated in the urine? By making specialist visits and looking for a diagnosis that can justify the presence of red blood cells in your pee.

Thered blood cells in the urine, in fact, they are not a condition fromcurebut a symptom shared with several problems. Even cystitis or genital herpes can lead to red blood cells in your urine! As is clear, to understandhow to cure ityou will have to investigate thecause.

Generally, the treatment of urinary tract infections consists of taking antibiotic drugs or, in the case of stones, drugs that can helpdissolve themto facilitate expulsion.

In any case, a visit to a specialist is recommended: you can start with a general practitioner, a urologist or a nephrologist if you have already had kidney problems.

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Video: RBC In Urine Why u0026 How to Identify (May 2022).