Thuja occidentalis — arbor vitae, the tree of life — is the remedy of tissue that grows where it should not. Warts, condylomata, polypi, naevi, fungoid excrescences, spongy tumours. Boericke opens by naming exactly that: "its relation to the production of pathological vegetations — condylomata, warty excrescences, spongy tumors — is very important."
That overgrowth is the visible face of what Hahnemann called sycosis, the second chronic miasm, and Thuja is its principal remedy. Boericke: the main action is "producing conditions that correspond with Hahnemann's sycotic dyscrasia, whose chief manifestation is the formation of wart-like excrescences upon mucous and cutaneous surfaces — fig-warts and condylomata."
But the remedy is far more than a wart medicine, and its mental symptoms are among the most striking in the entire materia medica. Boericke lists them without preamble: "fixed ideas, as if a strange person were at his side; as if soul and body were separated; as if something alive in abdomen."
This guide profiles Thuja for clinical study from Boericke's Materia Medica, Clarke's Dictionary, Boger's Synoptic Key and Lippe's Keynotes. The originals can be read in full — Clarke's Thuja, Boericke's Thuja and Kent's Thuja — through Similia's free digital materia medica.
The Thuja State
Three structural facts organise the remedy.
It is sycotic. Everything tends toward proliferation and toward foul, excessive secretion. Boger's summary: "soft, exuberant, fungoid tissue; polypi; condylomata; warts, pediculated, black, suppressed," with "foul, acrid, musty, rancid or sweetish odors. Oily stool, skin or sweat."
It is hydrogenoid. Boericke's term for constitutions "whose blood is morbidly hydroscopic, so that damp air and water are inimical." These patients are reliably worse in damp weather, in damp houses, near water. Boger's first aggravation is "COLD DAMP."
It is left-sided and chilly. Boericke states it in four words — "left-sided and chilly medicine" — and Boger lists "left side; ovary" among the regions.
To these add two causations that make Thuja one of the most-prescribed constitutional remedies in practice: ill effects of vaccination (Boericke italicises it, and coins "vaccinosis" for the chronic sequelae) and suppressed gonorrhoea. Boger lists vaccination, gonorrhoea, syphilis and mercury together among the aggravations.
The overall vitality is poor. Boericke: "rapid exhaustion and emaciation." Boger: "exhausted and soft. Great prostration. Rapid emaciation."
Mental and Emotional Picture
Fixed ideas. Thuja's mental symptoms are delusional in character and unusually concrete. Boericke's three are the classical set:
- "As if a strange person were at his side" — a sense of an unseen presence
- "As if soul and body were separated" — a dissociative, depersonalised quality
- "As if something alive in abdomen" — repeated in the abdomen section as "movements as of something living, without pain"
Boger adds more of the same family: "illusions, then fixed ideas; of fragility; of a live thing internally; of some one at his side; of being in hands of a stronger power."
The idea of fragility deserves separate mention because it has a physical counterpart. Boericke, in the extremities: "when walking, limbs feel as if made of wood or glass, and would break easily."
Emotional sensitivity to music. "Emotional sensitiveness; music causes weeping and trembling." A small, specific and highly usable symptom.
Hurried anxiety over trifles. Boger: "hasty and anxious; over trifles. Can't concentrate," with "ill-humored; sad; loathes life."
The psychological reading that has grown up around these symptoms — a sense of being fundamentally not what one appears, of concealing something — is not in the classical texts in those words, but it follows naturally from the fixed ideas as recorded.
Physical Affinities
Skin. The remedy's showcase: "polypi, tubercles, warts, epithelioma, naevi, carbuncles; ulcers, especially in ano-genital region. Freckles and blotches... brown spots on hands and arms." Nails are "crippled; brittle and soft"; Boger adds "ribbed, soft, brittle, crumbling, discoloured or distorted."
And the paradox: "eruptions only on covered parts; worse after scratching," set against sweat "only on uncovered parts." Lippe gives both in one line — "perspiration of the uncovered parts and dryness of the covered parts."
Sweat. "Profuse, sour, smelling like honey." Boger: "sweat on bare parts; with dry heat on covered ones; with cold hands; profuse on genitals; gushing, < company; foul; pungent; staining."
Genito-urinary. The second main sphere. "Urethra swollen, inflamed. Urinary stream split and small. Sensation of trickling after urinating. Severe cutting after" — note the aggravation is after, not during. There is gonorrhoeal rheumatism, chronic induration of the testicles, prostatic enlargement, and in women "vagina very sensitive," warty excrescences on vulva and perineum, thick greenish leucorrhoea and "severe pain in left ovary."
Head. "Pain as if pierced by a nail" — Boger's "tearing or like a nail in l. head." Left-sided headache; "white, scaly dandruff; hair dry and falling out"; and "greasy skin of face" (Boger: "face, pale, waxy, shiny").
Abdomen and stool. "Chronic diarrhoea, worse after breakfast. Discharges forcibly expelled; gurgling sound." Boger: "stools gurgle or pop out; < breakfast... hurried; explosive; spraying; gassy." Alternatively constipation "with violent rectal pain, causing stool to recede" — the same receding stool as Silicea, and Boericke cross-references both.
Mouth. "White blisters on side close to root [of tongue], painfully sore." Teeth "decay next to gums." Ranula with varicose veins on tongue and mouth. And a small oddity: "drinks fall audibly into stomach" — Boger's "noisy swallowing."
Eyes. Styes and tarsal tumours; "sclera raised in patches, and looks bluish-red"; recurring episcleritis; chronic scleritis. Boericke also gives "large, flat phlyctenules; indolent" — the same failure to resolve that characterises the whole remedy. Boger adds "eyes blood red; full of tears; stand open," and "photopsies, beyond visual field," which pairs oddly and characteristically with the fixed idea of a presence at one's side.
Respiratory. A smaller but well-defined sphere. Boericke names "asthma in children" — cross-referencing Natrum sulphuricum, the other hydrogenoid remedy — along with "papilloma of larynx" and chronic laryngitis, which are the sycotic overgrowth appearing on respiratory mucosa. The cough is "dry, hacking, in the afternoon, with pain in pit of stomach," and Boger notes it is "cough by day only," with expectoration easier lying down and "cheesy sputum."
Extremities and nails. "When walking, limbs feel as if made of wood or glass, and would break easily. Tips of fingers swollen, red... Muscular twitchings, weakness and trembling. Cracking in joints. Pain in heels and tendo-Achilles." Boger adds "hips give way; limbs feel paralyzed. Restless knees. Painful soles. Foul, acrid foot-sweat." The nails are among the most reliable physical signs: "nails brittle," "crippled," and in Boger "ribbed, soft, brittle, crumbling, discoloured or distorted" — dystrophic nail change in a patient with warts and a vaccination history is a strong pointer.
Key Modalities
Worse from:
- Cold, damp air; wet weather; water — the hydrogenoid aggravation
- Heat of the bed — a striking aggravation in an otherwise chilly patient
- 3 a.m. and 3 p.m. — an unusually precise double periodicity
- After breakfast
- Vaccination; suppressed gonorrhoea; mercury
- Tea, coffee, fat, onions
- Moonlight and the increasing moon
- At night; during menses; on urinating
Better from:
- Drawing up a limb; crossing the legs
- Free secretions; sneezing
- Warm air, warm wind; wrapping the head
- Motion (Boger); though Lippe records amelioration by rest — the two differ, and the case decides
- Touch; left side
The heat-of-bed aggravation in a chilly, left-sided patient is one of the more reliable confirmations, and it is easy to ask about directly.
Keynote Symptoms
- Warts, condylomata, polypi and other soft overgrowths
- Ill effects of vaccination
- Hydrogenoid: worse from damp air, wet weather and water
- Left-sided and chilly
- Fixed idea that something alive is moving in the abdomen, without pain
- As if a strange person were at his side; as if soul and body were separated
- Limbs feel as if made of wood or glass and would break easily
- Sweat only on uncovered parts; eruptions only on covered parts
- Sweat smells like honey; sour and staining
- Headache as if pierced by a nail
- Urinary stream split and small; trickling and cutting after urination
- Diarrhoea worse after breakfast, forcibly expelled
- Worse at 3 a.m. and 3 p.m.; worse from heat of the bed
- Music causes weeping and trembling
- Greasy, waxy, shiny facial skin
Clinical Applications
Warts and condylomata. The leading indication, and Boericke gives both routes — locally as tincture or cerate, internally from tincture to the thirtieth potency.
Ill effects of vaccination. Boericke names "vaccinosis" for the chronic sequelae — "inveterate skin troubles, neuralgia, etc." Silicea is the other principal remedy here, and the two are complementary.
Chronic genito-urinary complaints. Gonorrhoeal rheumatism, chronic urethritis, prostatic enlargement, chronic induration of the testicles, and the sycotic sequelae of suppressed gonorrhoea.
Polypi. Nasal, aural, uterine — the mucous-surface expression of the same overgrowth.
Chronic catarrh. "Thick, green mucus; blood and pus," with ulceration in the nostrils and pain at the root of the nose.
Chronic diarrhoea. Worse after breakfast, explosive, gurgling — a very specific and much-used indication.
Ovarian pain. Left-sided, worse at every menstrual period; Boericke cross-references Lachesis for the same laterality.
Asthma in children. Boericke names it, cross-referencing Natrum sulphuricum, the other great hydrogenoid remedy.
Differential Diagnosis
Thuja vs. Natrum sulphuricum. The closest rival for the hydrogenoid constitution, and Boericke lists them as complementary. Natrum sulphuricum owns the ill effects of head injury and a marked morning aggravation with loose morning stool; Thuja owns the warts, the vaccination history and the fixed ideas.
Thuja vs. Medorrhinum. Both are sycotic. Lippe is refreshingly direct that for the sequelae of gonorrhoea Thuja is "inferior to medorrhinum," and says so twice. Medorrhinum has the knee-chest sleeping position and a marked amelioration at the seashore; Thuja is worse near damp and water.
Thuja vs. Nitric acid. Both cover warts and condylomata, especially ano-genital, and Boger lists Nitric acid as complementary and related. Nitric acid has splinter-like pains, foul urine smelling like horse's urine, and marked irritability with unforgiving resentment; Thuja has the fixed ideas and the covered/uncovered paradox.
Thuja vs. Silicea. Complementary remedies sharing the vaccination causation and the receding stool. Silicea suppurates and expels foreign bodies; Thuja proliferates. Silicea is better for warmth and wrapping; Thuja is worse from the heat of the bed.
Thuja vs. Mercurius. Boger lists Mercurius as related and Boericke as an antidote — and mercury itself is one of the causations Thuja treats, so the sequence matters clinically.
For the wider framework in which sycosis sits, see our guide to the three miasms.
Repertorisation Tips
These rubrics carry Thuja in high grade:
- Skin; EXCRESCENCES; warts and Skin; CONDYLOMATA
- Generalities; VACCINATION; ailments from
- Generalities; DAMP; wet weather; agg. — the hydrogenoid general
- Mind; DELUSIONS; alive, something is, in abdomen — small and near-decisive
- Mind; DELUSIONS; strange; someone is beside him
- Mind; DELUSIONS; divided into two parts / body and soul are separated
- Mind; DELUSIONS; brittle, that she is; glass, of
- Perspiration; UNCOVERED parts, on and Skin; ERUPTIONS; covered parts, on
- Head; PAIN; nail, as from a
- Generalities; BED; heat of; agg.
- Rectum; DIARRHOEA; breakfast; after, agg.
- Mind; MUSIC; weeping, from
- Generalities; THREE a.m. and THREE p.m.
Anchor on a causation (vaccination, suppressed gonorrhoea) plus the hydrogenoid general, then confirm with one of the fixed-idea rubrics or the covered/uncovered paradox. Our beginner's guide to repertorisation sets out the method in more detail.
Deepening Your Study
- Boericke supplies the sycotic framing, the hydrogenoid definition and the three classical fixed ideas
- Boger's Synoptic Key collects the tissue quality — "soft, exuberant, fungoid" — and the fullest list of delusions
- Clarke's Dictionary holds the fullest proving and clinical compilation
- Lippe's Keynotes gives the covered/uncovered paradox in a single line, and is honest about Thuja's limits against Medorrhinum
- Kent's Lectures develop the mental picture and the sycotic constitution behind it
You can read all of these side by side for any remedy through Similia's free digital materia medica. To place Thuja among its peers, see the guide to the essential polycrest remedies, or read how materia medica and repertory work together in case analysis.
