Overactive bladder (OAB) is a sudden, uncontrolled bladder squeeze. It can strike day or night, and it’s more annoying than dangerous—until it runs your life.

Urgency floods are the hallmark. A sudden “gotta go now” hits, and you may leak before you reach the toilet.

Frequency climbs. You void eight or more times a day, often with only small amounts each trip.

Night trips multiply. Two or more awakenings become routine, even when you stop drinks hours before bed.

Leakage between trips is common. Small spurts escape when you stand, cough, or roll over in bed.

Urine itself is usually clear, and there’s no burning—just the bladder’s bad timing.

Late signs include a swollen lower belly or constant ache if the bladder never fully empties—an alarm that backup is starting.