Unexplained urinary occult blood red blood cells

I'm basically the same as you, it's been four years, and I haven't found out the cause, and I'm also very anxious!

Don't be stressed. It's going to be fine.

It is to observe the urine color normally and clearly, but the microscopic examination finds red blood cells, kidney disease, kidney tuberculosis, urinary stones and many other diseases may have occult blood in the urine.

Hello, there are three main causes of occult blood in the urine, one is inflammation, there are stones, and then there is tumor. In terms of inflammation, such as pyelonephritis, cystitis, etc. In addition to the possibility of hematuria, urine tests may also show occult blood in the urine.

Whether it's kidney, ureteral or bladder stones, these can cause occult blood in the urine.

If it is ruled out that it is a car accident injury, go to the lower kidney test, such as kidney function.

Occult blood in the urine is not the same thing as hematuria. Hematuria is a superficial phenomenon, and occult blood in the urine is the name of the disease. Hematuria is not necessarily due to occult blood in the urine, but may be caused by other conditions; Urine occult blood usually presents with hematuria.

The principle of urine occult blood test: if there are red blood cells in the urine, one of the hemoglobin in the red blood cells is ferrous hemoglobin, which has weak peroxidase activity, which can make the oxides in the urine test strip (such as peroxyanisin) release new ecological oxygen, and the oxygen can oxidize the o-toluidine contained in the test strip to blue. Based on the depth of this coloring, the instrument determines whether the urine occult blood is positive or the degree of positivity, and thus speculates that there may be red blood cells in the urine.

The use of urine occult blood test to determine whether there is hematuria, the main figure is convenient, fast, suitable for outpatient screening of hematuria. If vitamin C is used clinically, it will be excreted in the urine when the amount is large, it can neutralize the oxide in the urine test strip, and cannot produce oxygen, causing a false reaction. In urinary tract infections, some bacteria can produce peroxidase, causing false positives; Some crystals can also affect occult blood measurements, resulting in false-positive results; Some trauma or tissue infections can cause myoglobin in the urine and can also make urine positive for occult blood.

In addition, the urine occult blood test can also be caused by external factors such as whether the specimen is fresh, whether the reaction time is appropriate, whether the test strip is expired or contaminated, etc., can cause false positive or false negative results of urine occult blood test. However, whether there are really red blood cells in the urine is mainly determined by urine retention, centrifugal sediment and microscopic observation. For example, just like the police check the bad guy, first based on visual inspection, feel suspicious, and then check the ID card and turn over his old bottom.

Urine occult blood is equivalent to visual inspection, and urine sediment examination is equivalent to turning the old bottom. Visual inspection may be wronged, and turning the old bottom may also leak through the net for various reasons. Therefore, the diagnosis of hematuria cannot be based on urine occult blood alone, but mainly on the microscopic examination of urine sediment.

1.Kidney and urinary tract diseases.

1) Inflammation: acute and chronic glomerulonephritis, acute and chronic pyelonephritis, acute cystitis, urethritis, urinary tuberculosis, urinary fungal infection, etc.

2) Stones: Stones in the renal pelvis, ureters, bladder, urethra, any part of the body, when the stones move, they break the urothelium, which is easy to cause hematuria and secondary infection. Large stones can cause urinary tract obstruction and even kidney damage.

3) Tumors: Malignant tumors in any part of the urinary system or malignant tumors of adjacent organs can cause hematuria when they invade the urinary tract.

4) Trauma refers to violent injuries to the urinary system.

5) Congenital malformations of polycystic kidney, congenital glomerular basement membrane ultrathin, nephritis, nutcracker phenomenon (the disease is a congenital malformation of blood vessels caused by the compression of the left renal vein between the abdominal aorta and the superior mesenteric artery, causing refractory microscopic hematuria. The right renal vein is injected straight into the inferior vena cava, while the left renal vein is injected into the inferior vena cava through the angle between the abdominal aorta and the superior mesenteric artery. Normally, this angle is 45° to 60°, if the congenital angle is too small or filled by mesenteric fat, enlarged lymph nodes, and peritoneum, it can cause nutcracker phenomenon.

Diagnosis is mainly based on CT, B-ultrasound, and renal venography. **Surgical correction is required).

2.Systemic disease.

1) Bleeding disorders: thrombocytopenic purpura, Henoch-Schonlein purpura, hemophilia, leukemia, malignant histiocytosis, aplastic anemia, etc.

2) Connective tissue diseases: systemic lupus erythematosus, dermatomyositis, polyarteritis nodosa, scleroderma, etc.

3) Infectious diseases: leptospirosis, epidemic hemorrhagic fever, filariasis, infectious bacterial endocarditis, scarlet fever, etc.

4) Cardiovascular disease: congestive heart failure, renal embolism, renal vein thrombosis.

5) Endocrine and metabolic diseases: gout kidney, diabetic nephropathy, hyperparathyroidism.

6) Physical and chemical factors such as food allergies, radiation exposure, drugs (such as sulfonamides, phenols, mercury, lead, arsenic poisoning, large infusion of mannitol, glycerol, etc.), poisons, post-exercise, etc.

It is best to choose cereals in your daily life, especially millet porridge.

Urine routine says that there is occult blood in the urine What's going on Is it serious.

Occult blood in the urine is common for the following reasons,1Infections of the urinary tract. After the bacterial infection of the urinary system, it leads to mucosal congestion, edema, and a small amount of bleeding in the urine line, and the urine routine examination shows obvious white blood cells and red blood cells in the urine.

Most of them are accompanied by symptoms of urinary frequency, urgency, and painful urination. 2.Urinary stones.

Urinary stones can damage the mucosa of the urinary tract during movement, causing bleeding of the mucosa. Most of them are accompanied by significant abdominal pain and low back pain. 3.

Tumors of the urinary system. Necrosis and hemorrhage may occur in the mucosa on the surface of the tumor and in the tumor tissue.