Bawali shine fitar da fitsari daga mafitarsa yabi ta cikin urethra sannan ya fita zuwa wajen jiki. Ita ce urinary system na yanayin excretion(fitar ruwa daga jiki). A likitan ce ana kiran sa da micturition, voiding, uresis, ko, emiction. Ga ƴan'adam lafiyayyu (da yawan cin dabbobi) yin bawali ganin dama ne, Ga jarirai, da wasu daga cikin tsofaffi, da masu matsalolin neurologi, bawali agun su na faruwa ne kai tsaye. Kuma ga balagaggen mutum ya kanyi fitsari sau bakwai a rana. Wannan Muƙalar guntuwa ce: tana buƙatar a inganta ta, kuna iya gyara ta. American Urological Association. "Diagnosis and Treatment of Overactive Bladder (Non-Neurogenic) in Adults: AUA/SUFU Guideline" (PDF).