Matico (Piper aduncum) has a long history of traditional use in South America, particularly among indigenous populations, for supporting the healing of injuries such as wounds, cuts, and ulcers. Traditionally, the leaves are applied topically or prepared as poultices to aid in stopping bleeding and promoting wound healing. The justification for these uses is primarily based on ethnobotanical records and oral traditions rather than extensive scientific validation.

There is some preliminary scientific evidence suggesting that extracts of Piper aduncum possess antimicrobial, anti-inflammatory, and hemostatic properties, which could provide a rationale for its traditional application to injuries. A few in vitro and animal studies have demonstrated antibacterial activity and some wound-healing effects, but robust clinical trials in humans are lacking. The majority of the published literature focuses on traditional knowledge and basic pharmacological properties rather than direct, controlled evidence for efficacy in treating injuries.

In summary, the use of Matico for injuries is grounded in traditional medicine, with a limited but growing body of scientific research supporting its potential. However, the overall quality and quantity of scientific evidence remain low, and the predominant justification remains traditional use.