Final answer:
Cystitis is an infection of the urinary bladder caused by bacteria like Escherichia coli and is treated with antibiotics.
Explanation:
Cystitis is an infection of the urinary bladder. It is a common type of urinary tract infection caused by bacteria, typically Escherichia coli. Symptoms include pain with urination, frequent urination, and blood in the urine. Bladder infections are mainly treated with antibiotics.
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