What is the reason for sudden hematuria and pain in urine?

Sudden hematuria, urinary pain may be related to urinary tract infection, urinary system stones and other factors.

1, urinary tract infection

urinary tract infection is a common cause of hematuria, urinary pain, patients because pathogens invade the urethra, and retrograde into the ureter, bladder and other tissues, the formation of inflammatory reaction led to local nerve stimulation, promote vascular permeability increased, may produce the above symptoms.

2,

urinary system stones in patients with urinary system stones, kidney stones, bladder stones, etc., because the stones in the process of movement caused by mucosal rupture, the formation of peripheral nerve stimulation, prone to sudden hematuria, urinary pain performance.