Overactive bladder (OAB) is the name for a group of urinary symptoms. It is not a disease. The most common symptom is a sudden, uncontrolled need or urge to urinate. Some people will leak urine when they feel this urge. Another symptom is the need to pass urine many times during the day and night. OAB is basically the feeling that you’ve “gotta’ go” to the bathroom urgently and too much.
As many as 40 percent of women in the United States live with OAB symptoms. Many people living with OAB don’t ask for help. They may feel embarrassed. Many people either don’t know how to talk with their health care provider about their symptoms, or they think there aren’t treatments that can help.
Urgency: The major symptom of OAB is a sudden, strong urge to urinate that you can’t ignore. This “gotta go” feeling makes you fear you will leak if you don’t get to a bathroom right away. You may or may not actually leak with this urge to go.
Leak urine or have “urge incontinence.” This means urine leaks when you feel the sudden urge to go. This isn’t the same as stress urinary incontinence or SUI . People with SUI leak urine when sneezing, laughing or doing other physical activities.
Urinate frequently. You may need to go to the bathroom many times during the day. The number of times someone urinates varies from person to person. Many experts agree that going to the bathroom more than eight times in 24 hours is “frequent urination.”
Wake up at night to pass urine. If you have to wake from sleep to go to the bathroom more than once a night, it’s a symptom of OAB or nocturia.
Normally, when your bladder is full of urine waste, your brain signals the bladder. The bladder muscles then squeeze. This forces the urine out through the urethra. The sphincter in the urethra opens and urine flows out. When your bladder is not full, the bladder is relaxed.
With a healthy bladder, signals in your brain let you know that your bladder is getting full or is full, but you can wait to go to the bathroom. With OAB, you can’t wait. You feel a sudden, urgent need to go. This can happen even if your bladder isn’t full.
If the nerve signals between your bladder and brain don’t work properly, OAB can result. The signals might tell your bladder to empty, even when it isn’t full. OAB can also be caused when muscles in your bladder are too active. This means that the bladder muscles contract to pass urine before your bladder is full. In turn, this causes a sudden, strong need to urinate. We call this “urgency.”
