Context: Hyperthyroidism, Kasrat-e-Ifraz-e-Darqiyya in Unani medicine, is a condition in which the thyroid gland produces an excessive amount of the thyroid hormone thyroxine. Its clinical features are excessive sweating, heat intolerance, increased bowel movements, a voracious appetite, insomnia, tremors, palpitations, and a rapid pulse.
Objective: This review intended to investigate the observations in ancient Unani literature, Traditional Chinese Medicine (TCM), and Ayurveda that correspond to the clinical presentation of hyperthyroidism as well as to identify probable treatments in Unani medicine.
Design: The research team performed a narrative review to evaluate the concept of hyperthyroidism using classical Unani Medicine books, such as Firdaus-Ul-Hikmat (Wisdom of Paradise), Al-Havi Fit Tib (Liber Continence), Kamil- Us- Sana (Liber Regius), Al-Qanoon (The Canon of Medicine), and Zakheera Khvarazm Shahi (The Treasure of Medicine) to assess the perception of hyperthyroidism. The team also searched internet sources, such as Pubmed, Medline, Scopus, Web of Science, Publons, and Google Scholar. using keywords such as Su-e-Mizaj Ha'ar Maddi, Ghair Tabayi Safra, Yang-Yin, Pitta, hyperthyroidism. The study was undertaken at National Institute of Unani medicine, Bengaluru, India.
Results: In TCM, a dominant Yang Qi is considered as cause of hyperthyroidism; in Ayurveda, excessive Pitta production is considered as its cause, and in Unani Medicine it is due to an excess of abnormal bile (Ghair Tabayi Safra). Thus, the traditional systems all view the disease as a manifestation of excessive energy production.
Conclusions: The clinical symptoms of the hot temperament of bile (Su-e-Mizaj Ha'ar Maddi) and hyperthyroidism are similar in the literature. The resemblance may help medical practitioners to recommend a better approach for preventing, treating, and reducing the condition's devastating complications using the treatment approach of Unani medicine. It approaches hyperthyroidism with recommendations for reducing excessive energy production, with the help of restoration of the imbalance in temperament (Mizaj).