How big do kidney stones need to be to cause hematuria?

Patient's question:

I recently don't know what's going on, my lower body is very uncomfortable, and I'm not getting morning erections anymore. How big do stones need to be to cause hematuria?

Doctor's answer:

Whether it can cause hematuria depends on whether the stone can move. Generally, hematuria occurs when the stone moves within the kidney, ureter, bladder, or urethra, causing damage, or when it is accompanied by a severe urinary tract infection. If the stone is stationary and there is no severe infection, hematuria is usually not observed.
Recommendation: It is recommended to undergo regular ultrasound examinations at the hospital to monitor the condition of the stone. If possible, extracorporeal shock wave lithotripsy (ESWL) can be considered, followed by taking diuretic and stone-expelling traditional Chinese medicine to promote the stone's excretion. If the stone causes hydronephrosis, active treatment should be initiated based on the specific situation.

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