Overactive bladder or non-neurogenic overactive bladder is a syndrome characterized by urinary urgency, frequency, nocturia and urgency incontinence.
It is not a disease but a symptom complex that generally is not a life-threatening condition. It is also known as bladder spasms.
Urgency is the complaint of sudden, compelling desire to pass urine that is difficult to deny. It is considered a hallmark symptom of overactive bladder.
Frequency is usually micturition of >7 episodes during waking hours.
Nocturia is the interruption of sleep one or more times because of the need to void.
Urgency incontinence is the involuntary leakage of urine associated with a sudden compelling desire to void.