Overactive bladder (OAB) refers to a cluster of urinary symptoms and is not classified as a disease. The predominant symptom is an abrupt and uncontrollable urge to urinate, often leading to involuntary urine leakage in some individuals. Another common manifestation is the frequent need to urinate throughout both day and night. OAB is characterized by a persistent sensation of needing to use the bathroom excessively.
