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Overview

In people with an overactive bladder (OAB), the layered, smooth muscle that surrounds the bladder (detrusor muscle) contracts spastically, sometimes without a known cause, which results in sustained, high bladder pressure and the urgent need to urinate (called urgency). Normally, the detrusor muscle contracts and relaxes in response to the volume of urine in the bladder and the initiation of urination.

Questions to Ask Your Doctor about Overactive Bladder (OAB)(Free Handout)
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