What are the reasons for positive urine occult blood

Urine occult blood is a condition in which a large number of red blood cells appear during a routine urine test. If there are only a few red blood cells, it is called urine occult blood. If a large number of red blood cells appear in the test, it is positive urine occult blood. Positive urine occult blood means that there is urinary tract disease or kidney disease in the body. There are many reasons for positive urine occult blood. Generally, it is due to kidney disease. Suffering from nephrotic syndrome or nephritis can easily lead to positive urine occult blood, which can easily affect physical health and requires further examination. It can be treated with medication.

Causes of positive urine occult blood

There are many situations in which occult blood in urine may occur. The first thing to consider is whether it is caused by kidney or urinary tract infection. Specific analysis of the causes of pathological urinary occult blood:

First, kidney diseases, glomerulonephritis, nephrotic syndrome, systemic lupus erythematosus nephritis, etc. can cause occult blood in the urine.

Second, inflammation. Whether it is glomerulonephritis, pyelonephritis or cystitis, it may cause potential bleeding in the urine.

Third, stones. Stones in the kidneys, ureters, bladder, etc. may cause occult blood in the urine.

Fourth, tumors. Malignant or benign tumors of the kidneys, bladder, or ureters may cause occult blood in the urine.

Fifth, the main clinical manifestation of hereditary nephritis (Alport syndrome) is occult blood in the urine.

In addition, women may occasionally have occult blood in urine. Strenuous exercise and medication can also cause occult blood in urine.

Disease diagnosis

Basically, there are different considerations for occult blood at different ages and genders. For example, when occult blood is found in a young woman during a urine test, in addition to clinical symptoms, she should ask whether she is in her menstrual period. Cystitis is a common cause. However, if it is a 30-40 year old male, if there are no obvious symptoms of inflammation, sometimes an abdominal X-ray should be taken to see if there is a possibility of stones. For elderly men with hematuria or occult blood, prostatic hypertrophy is listed as the main consideration, and they should also undergo further intravenous pyelography or ultrasound examination to see if there is a tumor in the urinary system.

In addition, urine cytology is also a method to detect malignant tumors. If X-rays, ultrasounds and urine cytology are normal and occult blood is still present, it is best to undergo a cystourethroscopy. Because X-rays and ultrasounds are limited, not all tumors can be visualized. At this time, you can only use the naked eye to directly observe smaller lesions (cystourethroscopy). If these tests show no abnormal findings, we call this occult blood or hematuria "benign unexplained hematuria," which may be related to the body's immune mechanism and only requires regular follow-up in the future.

Active treatment

If you find abnormal urine occult blood during routine examinations, don't panic and fall into the misunderstanding of seeking medical treatment for the disease. It is best to reflect on yourself first to see if you have other symptoms. A series of complications can provide a better basis for diagnosis.

Secondly, through re-examination, the diagnosis is re-confirmed to determine the cause of occult blood in urine, and targeted treatment is carried out according to the cause.

In the treatment of common renal occult blood in urine, as occult blood and proteinuria leak out, the degree of kidney damage continues to increase. Therefore, targeted measures should be taken to treat occult blood in urine, inactivate inflammatory mediators that cause inflammatory reactions, prevent further damage to the damaged kidneys, and repair the damaged glomerular filtration membrane, thereby resolving symptoms such as occult blood in urine and proteinuria.

With hematuria

A positive urine occult blood test means that there are red blood cells in the urine, but it is not visible hematuria, but the red blood cells are found through testing methods. Hematuria is divided into gross hematuria, total hematuria, and positive urine occult blood; in clinical practice, the three-cup test is also used to analyze where the hematuria comes from. The three-cup test is that the patient divides his urine into three parts and places them in three test tubes. If hematuria is found in the first tube, it means that the bleeding site is in the urethra; if hematuria is found only in the last cup, it means that the bleeding site is from the bladder; if hematuria is found in all three cups, it means that the hematuria is from the kidneys. Blood clots in the urine often indicate bleeding in the bladder or urethra.