Zedoary (Curcuma zedoaria) is a rhizome that has a long history of use in traditional medicine systems, particularly in Ayurveda and Traditional Chinese Medicine (TCM). Within these systems, it is sometimes recommended for urinary tract health and as a diuretic, which indirectly associates it with the support of the bladder. In TCM, zedoary is believed to "move blood" and resolve stagnation, and some traditional texts mention its use in addressing urinary difficulties or promoting urination. However, the specific use of zedoary for direct bladder health support, as understood in modern medicine, is not strongly emphasized in these traditions.

Scientific research on zedoary primarily focuses on its anti-inflammatory, antioxidant, and hepatoprotective properties, with only limited studies addressing any direct effects on the urinary or bladder systems. There is a lack of robust clinical evidence supporting its efficacy for bladder health. Most modern references to zedoary's use for bladder support are based on its traditional applications rather than validated scientific findings. As such, the evidence rating is low (1), reflecting more of a traditional rationale than a scientifically substantiated one.