Abstract
Polyporus umbellatus is a rare porous fungus that exhibits notable pharmacological activities. Particularly, due to its diuretic properties, it is considered an important source of targeted drugs for the treatment of kidney disease. Extensive research has been conducted on this fungus, focusing not only on its challenging cultivation techniques but also on its diverse array of medicinal ingredients, including polysaccharides and steroids. These active compounds demonstrate considerable variability and exhibit a wide range of medicinal properties. As a result, extracting, separating, and purifying these active compounds has become a subject of interest. This review aims to provide a comprehensive overview of the types, structures, and physicochemical properties of these active compounds. Additionally, the medicinal effects of P. umbellatus are thoroughly examined, offering valuable insights into the utilization of its resources and the rational development of medical fungi.