subject index of the diseases found in the zend-avesta

The collection of zend fragments is the bible of ancient iran, which is known as the zend-avesta that contains some points about diseases. the aim of this documentary study is the extraction and assortment of diseases of the zend-avesta. to this end, each disease avesta presented was defined as unambiguously and as briefly as possible. finally, the findings were set and classified in the following tables. the results showed that over 70 diseases were found in the zend-avesta, which can be categorized into 13 groups in numerical order. the diseases found in the zand-avesta are as follows: unknown diseases (17), bodily defects/ infirmities (12), integumentary system (9), musculoskeletal system (7), lymphatic system (5), gynecology (5), nervous system (5), poisoning (3), related subjects (3), reproductive system (3), digestive system (2), urinary system (1), and dental disorders (1). overall, considering the diseases collected can help us better understand the medical aspects of the sacred books.