Blood in urine

Introduction Concept: Normal urine contains very small amounts of red blood cells. Urine without centrifugation can have 0 to 2 red blood cells per high power field under the microscope. If it exceeds this number, it is urine blood. Normal urine contains very small amounts of red blood cells. Urine without centrifugation can have 0 to 2 red blood cells per high power field under the microscope. If it exceeds this number, it is urine blood. Hematuria is caused by heat, blood stasis, heat storage of the kidney and bladder, damage to the veins, blood stasis, blood from the urine and hematuria, the disease site in the kidney and bladder, but with the heart, small intestine, liver, spleen There are close links and there is a difference between the real and the real. Commonly, there are heart fire, bladder heat, liver and gallbladder dampness, kidney deficiency, and spleen and kidney deficiency.

Cause

Urine blood: more than 95% is caused by the urinary system itself, including glomerular disease (acute nephritis, acute nephritis, membrane proliferative nephritis, mesangial proliferative nephritis, focal glomerulosclerosis, etc.) Renal cysts, stones (kidney, ureter, bladder, urethra stones), benign prostatic hyperplasia, urinary tract infections (tuberculosis, pyelonephritis, bladder urethritis, prostatitis) and tumors (kidney, ureter, bladder, prostate tumor) see. Other diseases such as abnormal blood coagulation (idiopathic or drug-induced thrombocytopenia, hemophilia, scurvy, etc.), systemic diseases (aplastic anemia, leukemia, systemic lupus erythematosus, dermatomyositis, leptospirosis, epidemics Hemorrhagic fever, etc.) can also cause hematuria.

Hematuria is accompanied by longer-term urinary frequency, urgency, dysuria, and is more likely to have renal tuberculosis; such as hematuria with eyelids, facial or systemic edema, increased blood pressure and fever, may be acute nephritis; such as hematuria Frequent urinary frequency, urgency, dysuria, mostly acute cystitis; such as poor urination, urethral mouth is not painful, but the naked eye sees red urine or microscopic red blood cells, mostly for prostate inflammation; hematuria with low back pain symptoms Sometimes, severe paroxysmal low back pain - renal colic, may be kidney or ureteral stones; age 40 years or older, no obvious symptoms and painful hematuria, may have urinary tumors; hematuria, back pain and body position and There are obvious relationships in daily activities. If the symptoms improve after bed rest, and the physical activity increases, the possibility of renal ptosis is greater. For example, hematuria with other parts of the body may be caused by blood diseases.

an examination

Related inspection

Urine bacterial culture prostate tumor marker (PSA) urine specific gravity urine specific gravity 3h test urine sediment

(1) There is blood or blood in the urine, or as in the case of strong tea or washing water, there is no pain when urinating.

(2) Laboratory examination, red blood cells can be seen under the microscope.

Location analysis of hematuria:

1. Primary hematuria: Hematuria is only seen at the beginning of urination, and the lesions are mostly in the urethra.

2. Terminal hematuria: Hematuria will appear at the end of the urination, and the lesions are mostly in the bladder triangle, bladder neck or posterior urethra.

3. The whole process of hematuria: hematuria occurs in the whole process of urination, and the bleeding site is mostly in the bladder, ureter or kidney.

The above three kinds of hematuria can be distinguished by three cups of urine test.

Differential diagnosis

Hematuria is accompanied by longer-term urinary frequency, urgency, dysuria, and is more likely to have renal tuberculosis; such as hematuria with eyelids, facial or systemic edema, increased blood pressure and fever, may be acute nephritis; such as hematuria Frequent urinary frequency, urgency, dysuria, mostly acute cystitis; such as poor urination, urethral mouth is not painful, but the naked eye sees red urine or microscopic red blood cells, mostly for prostatic inflammation; hematuria with low back pain symptoms Sometimes, severe paroxysmal low back pain - renal colic, may be kidney or ureteral stones; age 40 years or older, no obvious symptoms and painful hematuria, may have urinary tumors; hematuria, back pain and body position and There are obvious relationships in daily activities. If the symptoms improve after bed rest and the physical activity increases, the possibility of renal ptosis is greater. For example, hematuria with other parts of the body may be caused by blood diseases.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.