• Written, developed and personally delivered on a one-to-one basis by expert medical astrologer, J. Lee Lehman, PhD.

  • Designed for astrologers pursuing expert knowledge of medical astrology technique and an easy ability to demonstrate its principles to other astrologers.

  • Not just a “how to do it” course, but a personal mentorship program that draws out an astrologer's full potential as a medical astrology practitioner to ensure that every aspect of their work is confidently delivered to the highest professional standards.

  • An emphasis on all-round development and a careful balance between practical and theoretical concepts ensures full professional development.


The STA Masters Level Medical Astrology Course is an advanced, part-time study course, offered only through direct correspondence with J. Lee Lehman, PhD. A 'hands-on' course, it uses primary sources and extensive chart work to fortify understanding of the concepts presented in the foundational, Practitioners Level Medical Astrology Course. The course is designed for astrologers who are willing to explore traditional methods and philosophical implications of classical medical astrology in depth, and who wish to gain sufficient mastery of all its complex concepts to be confident of communicating its theory and practice to other astrologers. This includes the clear understanding that medical astrology is a timing system, not a means of medical diagnosis or treatment, which are the purview of licensed medical professionals.

Having acquired a sound overview of medical astrological principles at practitioner level, these are now studied within the context of traditional and primary sources. The course ensures maximum extraction of valuable information from each passage, and pushes the student to exercise critical thinking when placing historical sources into the most appropriate context. Students are led towards refined understanding of traditional medicine as a theory and philosophical system, with focus on how astrological principles are deeply embedded within it.

The course works with sources from the era of Hippocrates, through the 17th century and beyond, to pursue the theoretical connections between Western medical astrology and other traditional medical systems, including Western herbalism. Students are also expected to research the works of renowned medical astrologers, and to elucidate the ways in which medical rulerships and astrological distinctions relate to conditions of excess and deficiency. Classic medical case studies from various periods of history are assessed, with critical examination of where sources are consistent with each other, where they diverge, and how they compare to living traditions which still use these ideas within societal beliefs about indigenous medicine.

The copious course notes, primary sources, and exercises provided greatly facilitate the assimilation of the relevant information. However, the intention of the course is to expose and rectify any gaps of knowledge or practice, so it requires a firm commitment from the student. The purpose of the course is to develop the student’s ability to reason through the material – not accepting statements at face value, but with a critical eye for inconsistencies and hidden assumptions.

The overall aim of the course is to guide the student towards acquiring and demonstrating the ability to research selected fields of inquiry; to draw appropriate references to support relevant arguments; to gain detailed knowledge of medical and traditional astrological principles; and to demonstrate clear understanding of the historical, social and philosophical influences that have been impressed upon the astro-medical art.

Delivery Method:

This course is taught by personal correspondence with Lee Lehman through a dedicated online teaching portal.

Working from a standpoint of having acquired good understanding of the general principles of medical astrology, this top-level study course delves deeper into the primary sources. It explores a combination of ideas from modern practitioners of the Arabic tradition of medicine (with cutting edge ideas in herbalism), and other alternative systems of medicine to address the astrological considerations behind such issues as the similars-antipathy debate, the astrological considerations of purges and cleanses, and the mechanisms of tolerance and addiction.

The course consists of ten lessons which require extensive home study. Three 17th-century medical practitioners are studied in detail, with comparisons and contrasts made of their methods to gain familiarity with their working system in theory and practice. These are also compared to the developments of Paracelsan medicine, with consideration of how alchemy and magic affected the understanding of traditional practice. Delegates will learn and apply the frameworks used for the construction of herbals, and thereby address the question of how to apply these traditional concepts to plants from different parts of the globe. The same logic can be applied to other traditional methods of therapy, whether baths, fumigations, or cupping.

This, together with additional work on the systems of timing, ensures that the graduate of this course will have a nuanced and confident grasp of this complex, but very logical philosophical system.

Study Requirements:

Students must have succesfully completed the STA Practitioners Level Medical Astrology Course.

There is no formal time limit to course completion but – as a guide, and assuming a comfortable pace of part-time study – students should not expect to complete the course in less than two or three years.

Completion Benefits:

Students will receive the STA Diploma to verify their advanced level of training and demonstrated competence in a range of medical scenarios. Graduates will be entitled to advertise their mastery of such principles by using the initials STA DipM (School of Traditional Astrology Medical Astrology Diploma) in promoting their astrological services.

Enquiries & Further Information:

Graduates of the STA Practitioners Level Medical Astrology Course are advised to email Lee Lehman at lee@sta.co for a full syllabus, details of prices, and sample study material.