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Symptoms of Latent Psora

Definition

According to Hahnemann, latent psora is the early, subclinical stage of the psoric miasm that emerges after suppression of the primary skin eruption (the “itch”). The internal disease “increase[s] unceasingly and often for years unperceived by the eyes; so that anyone, who does not know the signs of its latent presence, would suppose and declare such persons to be healthy and free from any internal malady” (1). The affected individual “appears healthy” and “carries usual life activities, without any (or very little) limitations,” yet displays mild functional deviations that the trained physician can detect (2). Dimitriadis notes that these signs represent “increased susceptibilities and/or abnormal reactions to otherwise fairly innocuous” stimuli (3).

Symptoms of Latent Psora

Hahnemann enumerates approximately 60 signs of latent psora, emphasizing that they are seldom all present in a single person (1,4). They can be grouped as follows:

General / Constitutional
1. Paleness of the face and relaxation of the muscles (1)
2. Weariness early on awakening; unrefreshing sleep (1)
3. Uneasy, frightful, or at least too vivid dreams (1)
4. Perspiration in the morning in bed; perspiration breaks out too easily during the day, even with little movement, or inability to bring out perspiration (1)
5. Predisposition to catching cold from the slightest draught, especially in head, throat, breast, abdomen, or feet (1)
6. Most ailments come on at night, are worse in winter and toward spring, and aggravated by north/northeast winds and low barometric pressure (1)

Head, Ears, Eyes, Nose
1. Frequent one-sided headache or toothache, even from moderate emotional disturbances (1)
2. Frequent falling out of hair, dryness of the hair, many scales on the scalp (1)
3. Frequent inflammation of the eyes (1)
4. Epistaxis in girls and youths, often very severe; less frequent in older persons (1)
5. Long-continued obstruction of one or both nostrils; ulcerated nostrils (sore nose); disagreeable dryness of the nose (1)

Mouth, Throat, and Respiration
1. White or very pale tongue, more frequently cracked tongue (1)
2. Bad smell from the mouth, especially in the early morning and during menses (1)
3. Sour taste in the mouth; dryness in the mouth at night or in the morning (1)
4. Frequent inflammation of the throat and hoarseness (1)
5. Short tussiculation in the morning; frequent attacks of dyspnoea (1)

Gastrointestinal
1. Frequent discharge of ascarides and other worms in children, with intolerable itching of the rectum (1)
2. Abdomen often distended; now insatiable hunger, then again want of appetite (1)
3. Repugnance to cooked, warm food, especially meat; repugnance to milk (1)
4. Nausea in the morning; sensation of emptiness in the stomach (1)
5. Cutting pains in the abdomen, frequently or daily, especially in children (1)
6. Hard stools delaying more than a day, clotted, often covered with mucus; or nearly always soft, fermenting stools (1)
7. Venous knots at the anus; passage of blood with stools; passing of mucus from the anus; itching of the anus (1)

Genitourinary / Menstrual
1. Dark urine (1)
2. Amenorrhoea, irregularities in the menses — too copious, too scanty, too early, too late, of too long duration, too watery — with various concomitant bodily ailments (1)

Skin and Extremities
1. Unhealthy skin; every little lesion passes into sores; cracked skin of the hands and lower lips (1)
2. Frequent boils and felons (whitlows) (1)
3. Dry skin on the limbs — arms, thighs, and sometimes cheeks (1)
4. Rough, scaling spots on the skin with voluptuous itching and burning after rubbing; occasional insufferably itching vesicles on a finger, wrist, or other site (1)
5. Swollen, enlarged veins on the legs (varices) (1)
6. Chilblains and chilblain-like pains, even outside winter (1)
7. Cold, dry, or ill-smelling sweaty feet, with burning in the soles (1)
8. Usually cold hands or perspiration on the palms, with burning in the palms (1)
9. Arms/hands or legs/feet easily benumbed; frequent cramps in the calves, arms, and hands; painless subsultus of various muscle groups (1)
10. Predisposition to strains even from carrying or lifting a slight weight; complaints from moderate stretching of the muscles (headache, nausea, prostration, tensive pains in neck and back) (1)
11. Cracking of one or more joints on moving; pains as of corns without external pinching (1)
12. Twitching of the limbs on going to sleep (1)
13. Drawing, tensive pains in the neck, back, limbs, and teeth in damp, stormy weather, in north/northeast winds, after colds, over-lifting, disagreeable emotions (1)
14. Renewal of pains and complaints while at rest, with disappearance while in motion (1)
15. Predisposition to erysipelas now and then (1)

Mind (additional observations)
1. Inability to think or to perform mental labor; melancholy; anxiety with restlessness; weeping disposition; the patient “finds no rest, but has to run here and there and often falls into perspiration” (5)

Modalities (consistent pattern)
1. Aggravation at rest, at night, in winter, in damp/stormy weather, and from north/northeast winds
2. Amelioration from motion (1)

References

1. Hahnemann S. The chronic diseases: their peculiar nature and their homoeopathic cure. Vol. 1. Tafel LH, translator. Philadelphia: Boericke & Tafel; 1896. p. 45–47. (Original work published 1828.) Available from: https://www.homeopathyingreece.gr/images/pdf/the-chronic-diseases-hahnemann.pdf

2. Master FJ. Latent psora: practical approach [Internet]. Homeobook; [cited 2026 Jul 23]. Available from: https://www.homeobook.com/latent-psora-practical-approach/

3. Dimitriadis G. The theory of chronic diseases according to Hahnemann. Kandern: Narayana Verlag; 2005. p. 45–47. Available from: https://www.narayana-verlag.de/homeopathy/pdf/The-Theory-of-Chronic-Diseases-According-to-Hahnemann-George-Dimitriadis.04437_1.pdf

4. Little M. Understanding the miasms. Homœopathica. 2003;3(2). Available from: https://simillimum.com/education/little-library/Volume-III-C2-UnderstandingtheMiasms.pdf

5. An approach to the Hahnemannian concept of psora. Homoeopathic Heritage [Internet]. [cited 2026 Jul 23]. Available from: https://www.homoeopathicjournal.com/articles/489/5-4-34-621.pdf

6. (Optional secondary source) Kent JT. Lectures on homoeopathic philosophy. Lecture on psora. Chicago: Ehrhart & Karl; 1900.

Schools of Philosophy and Hahnemann’s Position

In the classical philosophical framework used in homoeopathic philosophy (notably Stuart Close’s Lectures on Homoeopathic Philosophy), the various schools of philosophy are broadly classified into three major schools (1):

1. Materialism
*Definition: The doctrine that the facts of experience are all to be explained by reference to the reality, activities, and laws of physical or material substance. In psychology it denies the reality of the soul as a psychical being; in cosmology, it denies the need of assuming any spiritual ground or first principle (1).

*Position on disease: Disease is a product of the organism — explainable by physical, chemical, or mechanical alterations of matter (e.g., the allopathic “materia peccans” or material morbific principle) (2, 3).
*Hahnemann’s stance: Explicitly rejected. The Organon (Aphorism 11, footnote) states that the allopathic idea of disease as “a thing separate from the living whole… hidden in the interior, be it of ever so subtle a character, is an absurdity that could only be imagined by minds of a materialistic stamp” (3). He also wrote that diseases are “not mechanical or chemical alterations of the material substance of the body, and not dependent on a material morbific principle” (2).

2. Idealism (Spiritualism / Dynamism)
*Definition: “That system of reflective thinking which would interpret and explain the whole universe, things and minds and their relations, as the realization of a system of ideas” (1).

*Position on disease: Disease is a dynamic, spiritual derangement of an immaterial principle (vital force / dynamis) that animates the body, not a material thing (1, 2, 3).

*Hahnemann’s stance: Adopted — this is his school. Hahnemann has traditionally been assigned to the Idealist school. In an attempt to be more specific, he has been called a Vitalist, referring to the prominence given in the Organon to the doctrine of the vital force (1, 3, 4). His biographer Haehl also confirms he was “a strong opponent of materialism” and advanced toward spiritualism in his later years (5).

3. Substantialism
*Definition: “The doctrine that substantial existences or real beings are the sources or underlying ground of all phenomena, mental and material; especially the doctrine which denies that the conception of material substance can be resolved into mere centres of force” (1).
*Position on disease: Disease is a real, substantial entity — a distinct “thing” that exists independently in the body.

*Hahnemann’s stance: Rejected. The Organon (Aphorism 11, footnote; Aphorism 13) explicitly denies that disease is any “substance, any acridity, that is to say, any disease-matter.” Disease is “solely spirit-like (dynamic) derangement of the spirit-like power (the vital force) that animates the human body” (2, 3).

Summary of Hahnemann’s classification

1. Materialism: Disease = physical/chemical/material change | Rejected (called it “an absurdity… imagined by minds of a materialistic stamp”)
2. Substantialism: Disease = a real, substantial entity in the body | Rejected (diseases “depend on no substance, no acridity… no material principle of disease”) |
3. Idealism (Spiritualism / Dynamism / Vitalism) | Disease = dynamic, spiritual derangement of an immaterial vital force | Adopted — this is the school Hahnemann belongs to (more specifically, a Vitalist within the Idealist tradition) |

Conclusion: Dr. Hahnemann is considered an Idealist philosopher — and, more specifically, a Vitalist (or Dynamist) within the Idealist school — whose system of homoeopathy is fundamentally opposed to both the Materialist and Substantialist schools of philosophy (1, 2, 3, 4).

Reference list (Vancouver style)

1. Close S. Lectures on Homoeopathic Philosophy. Chapter III: Schools of Philosophy [Internet]. New Delhi: B. Jain Publishers; [cited 2026 Jul 23]. Available from: http://homeoint.org/books4/close/chapter03.htm

2. Hahnemann S. Organon of the rational art of healing. 1st ed. Dresden: Arnold; 1810. (Original work: Organon der rationellen Heilkunde).

3. Vithoulkas G. Aphorisms 9–18 [Internet]. International Academy of Classical Homeopathy; [cited 2026 Jul 23]. Available from: https://www.vithoulkas.com/learning-tools/organon/organon-hahnemann/aphorisms-9-18/

4. Jütte R, Lambeck M. The life and legacy of Samuel Hahnemann. *Indian J Res Homoeopathy*. 2024;18(3):1–9. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC11524651/

5. Schmidt JM. Hahnemann’s worldview: deism, rationalism, and the philosophy of nature. In: Homöopathie und Philosophie – im Spannungsfeld zwischen Empirismus und moderner Wissenschaft. München: LMU München; 2009. Available from: https://epub.ub.uni-muenchen.de/21842/1/oa_schmidt_21842.pdf

Psora Produces Mental and Sensorial Disorders — Explanation

Introduction

The term psora originates from the ancient Greek word psora, meaning “to rub or scratch,” and historically referred to scaly, itchy skin lesions — most commonly scabies (1). Samuel Hahnemann, the founder of homoeopathy, elevated this concept in his seminal work The Chronic Diseases, Their Peculiar Nature and Their Homoeopathic Cure (1828/1842), proposing psora as the “mother of all chronic diseases” (2). According to Hahnemann, psora is a chronic miasmatic disease that begins with a cutaneous eruption (the itch), and when suppressed, its internal dynamic influence spreads to the mind and sensorium, producing a wide array of mental and sensorial disorders (3).

The Miasmatic Concept of Psora

A miasm is defined as a dynamic morbific agent that is not perceivable by the senses but is recognized only by its effects on the vital force (4). Hahnemann identified three fundamental chronic miasms — psora, sycosis, and syphilis — and held that approximately seven-eighths of all chronic non-venereal diseases originate from psora (2,5). The central theme of psora is deficiency, lack, and need, expressed across both physical and mental planes (6). When the primary skin manifestation (eruption) is suppressed by external applications, the internal miasmatic force is driven inward, deranging the vital principle and manifesting on the mental and sensorial levels (7).

The scientific parallel of psora is now understood as an immunological/hypersensitivity response, where suppression of skin disease leads to chronic dyscrasias such as bronchial asthma, allergic rhinitis, and neuro-psychiatric disturbances (8).

How Psora Produces Mental Disorders

According to classical homeopathic literature, psora first affects the soul (vital force), then the mind, and lastly the body (8). This is the rationale behind the rich mental symptomatology attributed to psora.

Key Mental Symptoms Produced by Psora:

1. Anxiety and Fear — The hallmark of psora is an underlying anxiety, often with fear of poverty, failure, disease, death, ghosts, strangers, or being alone (9,10).
2. Anticipatory Anxiety — Psoric patients are extreme planners, constantly preparing for imagined future misfortunes; they fear insecurity and last-minute problems (10).
3. Restlessness — The patient is compelled to move about; the mind is “quick, active,” but easily prostrated by mental exertion (9,11).
4. Depression and Despondency — Mental depression, melancholy, sadness, timidity, and a sense of fatigue (9,12).
5. Hopelessness and Suicidal Tendencies— Severe cases may exhibit despair of salvation, fear of becoming a beggar, or an inward urge to end misery (12,13).
6. Irresolution and Low Self-Confidence — Psoric persons cannot easily decide; once decided, they become obstinate (10).
7. Vanishing of Thoughts — Inability to concentrate; thoughts disappear while reading or writing (9).
8. Easily Frightened — Trifling causes produce trembling, shaking, weakness, and perspiration (9).
9. Sudden Mood Transitions — Sudden shifts from cheerfulness to sadness or peevishness without apparent cause (9).
10. Hypersensitivity of Mind — Over-sensitive to sad stories, violence, criticism; emotionally easily wounded (10).
11. Disturbed Mental Equilibrium — Forgetfulness, weakened mental faculties, aphasia, and apoplectic tendencies in advanced states (13).
12. Apprehensive Dreams and Sleeplessness — Uneasy, frightful, or vivid dreams reflecting inner unrest (14).

The psoric mind is thus described as active, anxious, and hypersensitive — in contrast to the sycotic mind (malactive/cross) and the syphilitic mind (inactive/dull) (8).

How Psora Produces Sensorial Disorders

Psora, being fundamentally a “sensitising miasm,” produces heightened excitability of the sensorium, with functional (not structural) disturbances of the special senses (15).

A. Sensorial / Vestibular Disturbances

1. Vertigo: Numerous and peculiar — produced by walking, looking up, rising from sitting/lying, or from digestive disturbances; accompanied by spots before the eyes; relieved by lying down(11,14).
2. Aggravation of vertigo by emotional disturbances is characteristic of psora (11).

B. Visual Disturbances

1. Intolerance of daylight or sunlight; symptoms worse in the morning, better by heat (11).
2. Spots before the eyes — considered a characteristic stigma of psora (11).
3. Functional complaints — flickering, dimness of vision, photophobia (15).

C. Auditory Disturbances

1. Marked oversensitiveness to sounds— a characteristic nervous reflex of psora (11).
2. Intolerance of noise; functional ear symptoms without structural pathology.

D. Olfactory and Gustatory Disturbances

1. Oversensitivity to odours (15).
2. Perversions of taste — bad, sweet, bitter, or sour taste; regurgitation of food taste (11,14).

E. Headache (Cephalic Sensorium)

1. Sharp, paroxysmal headaches in the morning, increasing as the sun rises and better as the sun sets (11,14).
2. Throbbing headaches with red face, relieved by rest, quiet, sleep, and hot applications (11).

F. General Sensorial Hypersensitivity

1. Hypersensitivity to touch, pressure, temperature changes, and atmospheric variations (15,6).
2. The psoric patient takes cold at the slightest exposure and reacts intensely to every climatic change (12).

The defining feature of all psoric sensorial disorders is that they are functional, not organic. They arise from the disturbed vital force and are reversible with appropriate anti-psoric treatment (4,15).

Mechanism: From Skin to Mind and Sensorium

The classical explanation, supported by modern immunological interpretation, is as follows:

1. The miasm of psora (originally itch/scabies — Sarcoptes scabiei) enters the body through the skin (16,17).
2. When the cutaneous eruption is suppressed, the internal miasmatic force is driven inward.
3. It first disturbs the vital principle (soul), producing internal itching — a “mental itch” — characterised by restlessness, anxiety, and insecurity (8).
4. It then extends to the mind, producing the mental symptoms described above.
5. Finally, it reaches the sensorium and body, producing functional disorders of the special senses, vertigo, headaches, and numerous somatic complaints (4,8).

Thus, psora is considered the deepest and most universal miasm, capable of producing the entire range of mental and sensorial disorders that Hahnemann grouped under chronic non-venereal disease (2,5).

Conclusion

Psora, as conceived by Hahnemann and elaborated by later homoeopathic physicians, is the foundational chronic miasm that, when activated by suppression of skin disease, produces a distinctive spectrum of mental and sensorial disorders. The mental picture is dominated by anxiety, fear, restlessness, depression, and hypersensitivity, while the sensorial picture is characterised by vertigo, visual and auditory hypersensitivity, olfactory and gustatory perversions, and paroxysmal headaches — all essentially functional in nature. Understanding psora as the sensitising miasm provides the classical homoeopathic framework for recognising and treating these widespread chronic disturbances (2,6,8,15).

Reference

1. Fisher BK, Margesson LJ. Genital skin disorders: diagnosis and treatment. St. Louis: Mosby; 1998. (Historical reference for the term psora in Greek medicine.)

2. Hahnemann S. The chronic diseases, their peculiar nature and their homoeopathic cure. 2nd ed. Vol. 1. New York: William Radde; 1845. (Original German edition, Dresden: Arnold, 1828.)

3. Rivera A. The myth of psora. Hpathy J [Internet]. 2008. Available from: https://hpathy.com/homeopathy-papers/the-myth-of-psora/

4. Vithoulkas G, Hoizey D, Nobile F, et al. An approach to the Hahnemannian concept of psora: “the road less travelled.” Homoeopathic Herit. 2018;5(4):34–62. Available from: https://www.homoeopathicjournal.com/articles/489/5-4-34-621.pdf

5. Close S. Hahnemann’s “Chronic Diseases.” Homoeopath Physician [Internet]. 1882. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9708175/pdf/homoeopathphys134218-0009.pdf

6. Similia. Miasms in homeopathy: psora, sycosis & syphilis explained [Internet]. Similia; 2023. Available from: https://www.similia.io/blog/miasms-psora-sycosis-syphilis-guide

7. Hahnemann S. Organon of the medical art. 6th ed. O’Reilly WB, translator. Redmond (WA): Birdcage Books; 1996. (Original work published 1810.)

8. Shah JL. Psora theory of Hahnemann is scientifically immunological. Homoeopathic Herit. 2018;5(2):8–19. Available from: https://www.homoeopathicjournal.com/articles/392/5-2-8-239.pdf

9. Allen JH. Mind symptoms of psora and pseudo-psora. Homeopathy360 [Internet]. 2015. Available from: https://www.homeopathy360.com/mind-symptoms-of-psora-and-pseudo-psora-according-to-j-h-allen/

10. Master FJ. The psoric miasm — an overview. Homoeopath Herit. 2015;Feb(2). Available from: https://drfarokhmaster.com/wp-content/uploads/2017/10/2015-EDITORIAL-FOR-FEBRUARY-2015.pdf

11. Roberts HA. The principles and art of cure by homoeopathy. Chapter 23: Psora. Rustington: Health Science Press; 1936. Available from: http://www.homeoint.org/books4/roberts/chapter23.htm

12. Royal GC. Psorinum. Homoeopath Physician [Internet]. 1922. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9725555/pdf/homoeopathphys132132-0024.pdf

13. Royal GC. Psora — its nature. Homoeopath Physician [Internet]. 1934. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC9722145/pdf/homoeopathphys134634-0004.pdf

14. Anonymous. Latent symptoms of psora. In: Hahnemann S, editor. The chronic diseases. Translated from the German. 2nd ed. New York: William Radde; 1845. p. 49–82.

15. Homeopathy Study Guide. Psoric miasm materia medica [Internet]. 2021. Available from: https://homeopathystudyguide.weebly.com/psoric-miasm-materia-medica.html

16. Arlian LG, Morgan MS. A review of Sarcoptes scabiei: past, present and future. Parasit Vectors. 2017;10(1):297.

17. Currier RW, Walton SF, Currie BJ. Scabies: a historical perspective. Clin Infect Dis. 2011;52(12):1455–61. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC11589026/

18. Fisher P. From Hahnemann’s psoric miasm to the psoric chronic reaction mode of the XXIst century: examples in dermatology. J Integr Med Ther. 2021;8(1):1–5. Available from: https://www.sciencedirect.com/science/article/abs/pii/S1878973021000232