What does it mean if there is 3+ blood in urine test, and what should I do?
Oct 30, 2024
Source: Cainiu Health
Dr. Yang Guang
Introduction
In general, a urine test showing blood 3+ indicates positive occult blood in the urine, usually meaning that the number of red blood cells in the urine exceeds the normal range. Positive occult blood in urine is commonly associated with conditions such as cystitis, urinary tract infections, urinary system stones, renal vascular abnormalities, and glomerulonephritis. It is recommended to seek medical attention promptly and receive appropriate treatment, including general management and medication, under the guidance of a physician.
Generally, a urine test showing blood 3+ indicates positive occult blood in the urine, usually meaning that the number of red blood cells in the urine exceeds the normal range. Positive occult blood in urine is commonly associated with conditions such as cystitis, urethritis, urinary system stones, renal vascular abnormalities, and glomerulonephritis. It is recommended to seek medical attention promptly and receive treatment under a doctor's guidance, including general management and medication. Specific analyses are as follows:
Causes of urinary system stones, glomerulonephritis, and cystitis
1. Cystitis
Cystitis is caused by bacterial infection, poor lifestyle habits, and other factors. Bacterial infection of the bladder mucosa leads to inflammation and bleeding. It is typically accompanied by symptoms such as frequent urination, urgency, and painful urination. Under medical guidance, patients may take medications such as cefixime capsules, amoxicillin-clavulanate potassium tablets, or cefdinir capsules.
2. Urethritis
Urethritis is an infectious disease caused by bacterial infection of the urethra, which may lead to congestion, edema, and even bleeding of the urinary tract mucosa, resulting in red blood cells appearing in the urine. Common symptoms include frequent urination, urgency, and dysuria. Patients may follow medical advice to use medications such as fosfomycin calcium capsules, cefuroxime axetil tablets, or levofloxacin hydrochloride capsules.
3. Urinary System Stones
Urinary stones are common disorders of the urinary system, primarily caused by metabolic abnormalities, urinary tract obstruction, and other factors. They can occur anywhere in the kidneys, bladder, ureters, or urethra. As stones move through the urinary tract, they may scratch the mucosal lining, causing bleeding. Symptoms often include flank pain, abdominal pain, and hematuria. Under medical guidance, patients may take herbal medications such as Lysimachiae herba granules, calculus expulsion granules, or Nephrolithiasis-relieving pills.
4. Renal Vascular Abnormalities
Conditions such as atherosclerosis and vasculitis may lead to renal artery stenosis or renal vein thrombosis, impairing renal blood flow and causing local ischemia and hypoxia, resulting in kidney tissue damage and bleeding. Symptoms may also include hypertension and flank pain. Patients should be treated under medical supervision with medications such as nifedipine sustained-release tablets, warfarin sodium tablets, or sodium nitroprusside for injection.
5. Glomerulonephritis
Glomerulonephritis may be triggered by infections or extrarenal diseases, leading to abnormal filtration of red blood cells from the blood into the urine, manifesting as positive occult blood. Other common symptoms include reduced urine output, edema, and hypertension. Under medical supervision, patients may be prescribed medications such as prednisolone acetate tablets, cyclophosphamide tablets, or benazepril hydrochloride tablets.
In daily life, maintaining adequate fluid intake, eating a light diet, and engaging in moderate exercises such as jogging or tai chi can help enhance the body's immunity.
