The use of banana to support or treat bedwetting (nocturnal enuresis) is primarily rooted in traditional or folk medicine, particularly within certain Asian and Ayurvedic practices. There is no substantial scientific validation for this use. Some traditional systems suggest that bananas, being considered cooling and soothing to the urinary tract, may help reduce irritation or inflammation that could contribute to bedwetting. In these contexts, ripe bananas are sometimes recommended as part of a dietary approach to manage urinary issues in children.

However, a review of current biomedical literature reveals no clinical studies or scientific trials directly examining the effect of banana consumption on bedwetting frequency or severity. No plausible biochemical mechanism has been established to explain how bananas could prevent or reduce nocturnal enuresis. Conventional medical management of bedwetting focuses on behavioral interventions, alarm therapy, and sometimes pharmacological agents, but not dietary banana intake.

Overall, while the use of banana for bedwetting persists in some traditional remedies, the evidence supporting its efficacy is anecdotal and not backed by rigorous research. Thus, health professionals do not currently recommend banana as a primary or scientifically supported treatment for bedwetting.