What Causes Bladder Spasms?

Urinary Tract Infections

Urinary tract infections (UTIs) are characterized by an infection of any component of the urinary system including the ureters, kidneys, urethra, and bladder. UTIs happen as a result of an invasion of bacteria in the urinary tract. Bacteria enter the urinary tract through the urethra, and they make their way up into the bladder. Once there, the bacteria begin to multiply and colonize in the muscle rapidly. This bacteria colonization results in the development of a full-blown urinary tract infection, resulting in a response from the individual's immune system. The immune response results in inflammation of the bladder that makes the patient feel like they need to empty their bladder when it is already empty. Because of this sensation, it is not uncommon for the patient to excessively strain to urinate more. This intense strain on the bladder, urethra, and the sphincters can result in the bladder unexpectedly contracting. Usually, the bladder spasms will cease after the individual receives treatment for the infection and stops excessively straining to urinate.

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