What causes high white blood cells in urine?
Under normal circumstances, elevated urinary white blood cells may be caused by insufficient water intake, intense physical exercise, exposure to high temperatures or extreme cold, urinary tract infections, pyelonephritis, etc. If discomfort occurs, it is recommended to seek medical attention promptly. Detailed explanations are as follows:
1. Insufficient Water Intake
When the body lacks adequate fluid intake, urine becomes concentrated, which may lead to a relatively higher concentration of white blood cells in the urine. Increasing fluid intake appropriately and maintaining sufficient urine output can help dilute urinary white blood cells and restore them to normal levels.
2. Intense Physical Exercise
After intense exercise, due to accelerated blood circulation and increased metabolic byproducts, some individuals may experience a temporary rise in urinary white blood cells. No specific treatment is required; appropriate rest and hydration are usually sufficient.
3. High Temperature or Extreme Cold Environments
In extreme environments such as high heat or severe cold, the body may respond with an increase in white blood cells to adapt to environmental changes. It is advisable to avoid prolonged exposure to such conditions, take measures to prevent heatstroke or hypothermia, and replenish fluids and electrolytes promptly.
4. Urinary Tract Infection
Urinary tract infections are often caused by bacterial invasion. When bacteria enter the urethra, bladder, or kidneys, they trigger an inflammatory response, leading to a large number of white blood cells entering the urine to combat the infection, resulting in elevated urinary white blood cells. Symptoms may include frequent urination, urgency, and others. It is recommended to treat under a doctor's guidance using medications such as cefuroxime axetil tablets, fosfomycin tromethamine powder, or azithromycin dispersible tablets.
5. Pyelonephritis
Pyelonephritis is primarily associated with bacterial or viral infections. Bacteria may travel upward to infect the kidneys, causing inflammation of the renal parenchyma and renal pelvis, leading to white blood cell infiltration and elevated white blood cells in the urine. Symptoms may include fever and flank pain. Patients may be treated under medical supervision with medications such as sodium bicarbonate tablets, nitrofurantoin enteric-coated tablets, or levofloxacin tablets.
Routine health maintenance includes paying attention to bodily changes, maintaining a balanced diet, engaging in moderate physical activity, ensuring adequate sleep, and avoiding excessive fatigue to enhance overall immunity.