What happens when women suddenly urinate blood and frequent urination?

Urethritis

is a disease caused by Neisseria gonorrhoeae, chlamydia, mycoplasma and other pathogens. The main symptoms are difficulty urinating, blood in the urine, frequent urination, urethral redness, urethral secretions, etc.

Cystitis

can lead to congestion, edema and even damage of the bladder mucosa, so frequent urination, blood in the urine, urgent urination, poor urination

and other symptoms may occur.