Medical Consultation & Decumbiture Chart Interpretation: Diagnosis

Medical Consultation & Decumbiture Chart Interpretation: Diagnosis

This course equips students with the techniques to give an astrological diagnosis and provide a framework for designing treatments or lifestyle interventions using consultation charts, horary charts, and decumbitures, for the purpose of helping clients to obtain the best outcomes and navigate medical issues, and to help guide a therapist or treatment provider. The course covers traditional concepts of diagnosis, in addition to discussing the limitations and ethical responsibilities of the practitioner; it will enable students to utilize astrology to help clients dealing with medical issues in practical and responsible ways.

Instructor: Marcos Patchett

MD202 (5 weeks) – Fall 2023-24
Begins Saturday, October 14, 2023
Advance pricing ends September 30, 2023


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Instructor: Marcos Patchett
Date: Saturday, beginning October 14, 2023
Time: 11:30 AM – 1:30 PM Pacific Time
Course Length : 5 weeks – All live sessions are recorded



This course is the second of two modules teaching the traditional art of decumbiture and medical consultation chart interpretation. Ethical and practical limitations of astrological diagnosis will be discussed; techniques will include the calculation of humoral imbalance or temperament in both natal and consultation charts, traditional methods for deducing the cause and state of disease in decumbiture charts, and identification of diseased body parts or organs in astrological diagnosis, in addition to specific guidelines for prescription or treatment which may be adduced from the astrological chart.

Set texts / required reading:
  1. Lilly, W.  (1647; repub. 2004). Christian Astrology Bk 1 [An Introduction to Astrology] & Bk 2 [The Resolution of all manner of Questions and Demands]. Astrology Classics, U.S.A.
  2. Culpeper, N. (1655; repub. 2003). Astrological Judgment of Diseases from the Decumbiture of the Sick Astrology Classics, U.S.A. 
  1. Diagnosis 1 – humoral imbalance.  Includes an overview of astrological diagnostic methods, their limitations and ethical or legal use; and the calculation of humoral imbalance from a decumbiture, horary or consultation chart.
  2. Diagnosis 2 – temperament and physical dysfunction.  Including how to assess the natal temperament, and how to deduce which body parts may be affected by disease in any chart; how that information may be used to guide treatment.
  3. Diagnosis 3 – the cause and state of the disease.  Including the last aspect of the Moon as descriptors of the humoral, physical and psychological causes of disease.
  4. Diagnosis 4 – details.  Describes how to use charts to find the humoral state and “temperature” of specific organs and what this may imply, and using consultation charts and decumbitures with the natal chart for astrological diagnosis.
  5. Remediation 2 – specific recommendations.  Includes the use of the Ascendant ruler, 10th house ruler and other planets in the chart to describe appropriate treatment, and how to assess the client’s current treatment and work towards optimal treatment using astrology.



At a minimum, students should have astrological knowledge of signs, houses, planets, transits, and progressions.  Medical knowledge of basic anatomy, physiology, and pathophysiology is also desirable, and a basic understanding of key traditional concepts such as planetary dignities, sect, and reception are also essential.

Prior completion of MD101A is beneficial but not essential.



View Marcos Patchett’s bio here


Registration closes at 7:00am on Wednesday October 18th, 2023


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