A bladder infection, also known as a urinary tract infection (UTI), occurs when harmful bacteria enter the bladder and multiply. This can lead to symptoms like a strong urge to urinate, burning sensations during urination, and cloudy or strong-smelling urine. Bladder infections are more common in women due to their shorter urethra, which makes it easier for bacteria to reach the bladder. Treatment for bladder infections typically involves antibiotics to eliminate the bacteria. Drinking plenty of water can also help flush out the infection. It's important to see a doctor if symptoms persist, as untreated infections can lead to more serious complications.