The use of pointed gourd (Trichosanthes dioica, also known as "parwal" or "patol") for the treatment or management of kidney stones is primarily rooted in traditional medicine, particularly in Ayurveda and some folk practices in India and neighboring regions. In traditional Ayurvedic texts, pointed gourd is considered to have diuretic properties, which are believed to aid in flushing out toxins and possibly small kidney stones from the urinary tract. Some traditional practitioners recommend preparations of the fruit as part of dietary regimens for individuals prone to stone formation, based on its purported cooling and cleansing effects on the body.

However, scientific validation for these claims is limited. While a few studies have investigated the general pharmacological properties of Trichosanthes dioica—such as its antioxidant, anti-inflammatory, and diuretic effects—there is a lack of direct, controlled studies specifically evaluating its efficacy in dissolving or preventing kidney stones in humans. The diuretic effect observed in some preclinical studies could theoretically assist in stone passage or prevention, but this remains speculative without robust clinical trials.

In summary, the use of pointed gourd for kidney stones is supported by traditional use and limited preclinical data, but lacks substantial scientific evidence. It should not be relied upon as a sole or primary therapy for kidney stones without consultation with a healthcare professional.