General English (GE) is a course offered in all education programs by the Iranian medical education system. However, no curriculum has been developed for the course and teachers develop their syllabus, which largely relies on textbooks. This study aimed to investigate what textbooks used for teaching GE at the Iranian medical sciences universities and what language skills are covered in the textbooks. To this end, six medical universities were targeted and the textbooks used by them were collected and analyzed. The results showed that the textbooks used in the universities differed in terms of number (one or many) and type (medical, non-medical, and a combination of them). Certain textbooks were used commonly in most universities. The textbooks also covered the language skills differentially with vocabulary and reading being the most popular and listening and pronunciation being the least popular ones. The study concludes that there is no harmony in the GE textbooks in the universities, which results from the lack of a unified national curriculum. The study argues that differences in the textbooks can adversely affect the quality of education and educational justice and has implications for organizing English language teaching at medical universities.