Balloon Pea (scientifically known as Cardiospermum halicacabum) has a long history of use in traditional medicine systems, particularly in Ayurveda and folk medicine in parts of Asia and Africa. In these traditions, the plant has been used for a variety of ailments, including supporting women's reproductive health and treating menstrual irregularities. The rationale for its use in this context is largely based on empirical knowledge and anecdotal reports rather than rigorous scientific studies. Some traditional practitioners believe Balloon Pea has balancing effects on the female reproductive system and may help regulate menstrual cycles, often in the form of decoctions or herbal mixtures.

However, there is a significant lack of modern scientific research specifically evaluating the efficacy of Balloon Pea for menstrual irregularity. The available studies on Cardiospermum halicacabum mostly focus on its anti-inflammatory, analgesic, and anti-rheumatic properties, with little to no clinical trials or pharmacological investigations dedicated to its effects on menstrual health. Thus, while its use is justified by tradition, the overall evidence supporting its effectiveness for menstrual irregularity is weak and not substantiated by scientific validation.

In summary, the use of Balloon Pea for menstrual irregularity is rooted in traditional practices, but there is minimal scientific evidence to endorse its efficacy for this specific condition.