What causes blood in urine in men?

Blood in the urine in men may be caused by intense physical exercise, urethritis, ureteral stones, prostatitis, glomerulonephritis, and other conditions. It is recommended to seek timely medical attention, identify the underlying cause, and receive symptomatic treatment under the guidance of a qualified physician. Specific analysis is as follows:

1. Intense exercise: Certain high-intensity activities, especially prolonged running or weightlifting, may cause small blood vessels in the kidneys to rupture, leading to hematuria (blood in urine). It is advisable to reduce exercise intensity appropriately, ensure adequate rest, and maintain sufficient fluid intake, which can benefit recovery.

2. Urethritis: This may be associated with factors such as frequent late nights and excessive alcohol consumption. Bacterial invasion of the urethra after infection may lead to symptoms including frequent urination, hematuria, painful urination, and visible blood in the urine. Men are advised to take medications such as cefixime granules, roxithromycin tablets, or azithromycin capsules as prescribed by a doctor.

3. Ureteral stones: These may be related to metabolic abnormalities or bacterial infections. As stones move through the urinary tract, they may damage the ureteral wall, causing bleeding. Men should follow medical advice and use medications such as Pashitonglin oral solution, Pashi granules, or Nishitong pills for treatment.

4. Prostatitis: This condition is usually caused by excessive fatigue or iatrogenic injury. Local inflammation may lead to congestion and edema of prostate tissue, resulting in hematuria. Men should use medications such as ciprofloxacin hydrochloride tablets, minocycline hydrochloride capsules, or celecoxib capsules under a doctor's guidance to improve symptoms.

5. Glomerulonephritis: This is typically associated with improper use of nephrotoxic drugs or poor dietary habits. The disease may impair the filtration function of the glomeruli, allowing red blood cells to enter the urine, leading to symptoms such as hematuria and proteinuria. Men should strictly follow medical instructions and use medications such as furosemide injection, erythromycin tablets, or methylprednisolone tablets to alleviate symptoms.

In daily life, men are advised to drink plenty of warm water, avoid prolonged sitting, engage in mild physical activities such as walking or yoga, and maintain sufficient sleep, all of which can support recovery.