what are the early signs of bladder infection?
['A strong, persistent urge to urinate.', 'A burning sensation when urinating.', 'Passing frequent, small amounts of urine.', 'Blood in the urine (hematuria)', 'Passing cloudy or strong-smelling urine.', 'Pelvic discomfort.', 'A feeling of pressure in the lower abdomen.', 'Low-grade fever.']