Carica papaya leaves have been used in folk medicine for centuries. In addition to the nutritional value of its fruit, the leaves of Carica papaya possess medicinal properties and are widely used in traditional medicines. Papaya leaves and their extracts are sold as dietary supplements to improve the immune system and platelet counts, and to prevent side effects of chemotherapy. Researches shows that papaya leaf extracts are anti microbial, anti fungal, improve platelet count, and reduce stomach damage caused by alcohol.
Carica papaya leaf extract could be used as an additional or as a complementary drug in acute febrile illness patients with thrombocytopenia; it accelerates thrombopoiesis. Leaves are used variously for the treatment of fever, pyrexia, diabetes, gonorrhea, syphilis, inflammation and as a dressing for septic wounds.