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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:  Vindhya BellamKonda, M.B.B.S [2]

## Overview

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Life threatening causes of anxiety include anaphylaxis, acute coronary syndromes, cardiogenic shock, and myocardial infarction. Other common causes include anemia, caffeine, diabetes, and hyperthyroidism.

## Causes

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### Life Threatening Causes

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* Anaphylaxis
* Acute Coronary Syndromes
* Cardiac tamponade
* Cardiogenic shock
* Myocardial infarction

### Common Causes

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* Anemia
* Caffeine
* Cocaine addiction
* Diabetes
* Hyperthyroidism
* Irritable bowel syndrome
* Stress

### Causes by Organ System

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[1][2][3][4][5]

Cardiovascular | Accelerated hypertension  , Acute Coronary Syndromes, Angina pectoris, Aortic aneurysm, Bacterial pericarditis, Cardiac arrhythmia, Cardiac tamponade, Cardiogenic shock, Cerebrovascular disease, Chest pain, chronic orthostatic hypotension, Congenital heart disease, Congestive cardiac failure, Constrictive pericarditis  , constrictive tuberculous pericarditis , decreased cardiac output, Heart disease, Hypertension, Mitral valve prolapse, Myocardial infarction, Orthostatic intolerance, Postural orthostatic tachycardia syndrome, Sinus arrhythmia, Sinus node disease, Sinus tachycardia  Supraventricular tachycardia

|

Chemical / poisoning | Amines, Barium nitrate, Carbamate insecticide poisoning, Carbon disulfide,Lead poisoning, Manganese, Mercury, Organophosphate poisoning
Dermatologic | Acne, insect bite allergy, lupus, Pellagra, Vitiligo
Drug Side Effect | Acamprosate calcium, Acetaminophen, alpha-methyltryptamine, amantadine, amobarbital sodium, amphetamine, antidepressants, anorexia nervosa, aripiprazole, armodafinil, bortezomib, buprenorphine, bupropion, buspirone, butorphanol, caffeine, cannabis, carbamazepine, cimetidine, clobazam, clofarabine Injection, cocaine, caspofungin acetate, cyclosporine, dexamethasone Oral, dextroamphetamine and Amphetamine, dicyclomine, diphenhydramine, doxylamine, ECA stack, efavirenz, enoxacin, epinephrine (aerosol), ethcathinone, ethynodiol diacetate and ethinyl estradiol, Fentanyl fludrocortisone acetate, fluticasone Oral Inhalation  , fluoxetine, fluphenazine, fluticasone Oral Inhalation, gabapentin, ginseng, paroxetine, pergolide, phencyclidine, phenylephrine
Ear Nose Throat | Burning mouth syndrome, cholesteatoma, infectious mononucleosis, middle ear infection
Endocrine | Addison's disease, adrenal cortex diseases, adrenal gland hypofunction, autoimmune thyroid diseases, Graves disease, adrenal hypertension, adrenal tumor, anorexia nervosa, autoimmune thyroid diseases, carcinoid syndrome, congenital adrenal hyperplasia, conn syndrome-induced hypertension, cushing's disease, cushing syndrome, diabetes, eating disorder, Ectopic ACTH Syndrome, Graves disease, high t4 syndrome, hyperthyroidism, hyperparathyroidism hypoadrenalism, hypoglycaemia, hypoparathyroidism, hypothyroidism, insulinoma, multiple endocrine neoplasia type 1, pheochromocytoma, pituitary dysfunction, postpartum thyroiditis, subacute thyroiditis
Environmental | Nitrogen narcosis
Gastroenterologic | Anorexia nervosa, carcinoid syndrome, celiac disease, chest pain, congenital hepatic porphyria, Crohn's disease, eating disorder, hepatic encephalopathy syndrome, hiatus hernia, irritable bowel syndrome, pellagra, ulcerative colitis, Wilson's disease
Genetic | 22q11.2 deletion syndrome, acute intermittent porphyria, Asperger syndrome, celiac disease, chromosome 22q deletion, congenital heart disease, Crohn's disease, early-onset Alzheimer's disease, familial dysautonomia, Gulf War syndrome, heritable connective tissue disorders, velocardiofacial syndrome, WAGR syndrome
Hematologic | Anemia
Iatrogenic | Akathisia
Infectious Disease | Brucellosis, cystitis, encephalitis, infectious mononucleosis, neurosyphilis, rabies, tetanus, toxic shock syndrome, variant Creutzfeldt-Jakob disease
Musculoskeletal / Ortho | Tension myositis
Neurologic | Aging brain syndrome, akathisia, Alzheimer disease, Asperger syndrome, autism, autoimmune limbic encephalitis, autonomic dysreflexia  autonomic hyperreflexia, brain tumor, delirium, delirium tremens, dementia, early-onset Alzheimer's, encephalitis, familial dysautonomia, head injury, hepatic encephalopathy syndrome, Huntington's disease, hypersomnia, limbic encephalitis, multiple sclerosis, pellagra, post-concussion syndrome, Right parietal lobe syndrome, subarachnoid hemorrhage, temporal arteritis, temporal lobe epilepsy, vascular malformations of the brain, Wernicke-Korsakoff syndrome, Wilson's disease
Nutritional / Metabolic | Acute intermittent porphyria, celiac disease, food additives, glycogen storage disease type 6, hyperglycemia, hypoglycaemia, inborn amino acid metabolism disorder, pellagra, Wernicke-Korsakoff syndrome, Wilson's disease
Obstetric/Gynecologic | Menopause, postpartum depression, postpartum thyroiditis, premenstrual dysphoric disorder, premenstrual syndrome
Oncologic | Adrenal tumor, brain tumor, carcinoid syndrome, insulinoma, paraneoplastic limbic encephalitis
Opthalmologic | Oculogyric crisis, progressive external ophthalmoplegia, temporal arteritis
Overdose / Toxicity | Alcohol intoxication, amphetamine abuse, barbiturate abuse, benzodiazepine abuse, caffeine addiction , chemical addiction, cocaine addiction, crack addiction, cyclosporine toxicity, ecstasy addiction, ginseng overdose, lidocaine toxicity, marijuana addiction, methamphetamine overdose, narcotic addiction
Psychiatric | Abuse, Phonophobia, acrophobia, acute stress disorder, addiction, adjustment disorder, agoraphobia, alcohol withdrawal, anglophobia, anorexia nervosa, anthropophobia, antipsychotic (withdrawal), Asperger syndrome, attention deficit hyperactivity disorder, behavioral disorders, belonephobia, benzodiazepine withdrawal syndrome, bibliophobia, binge eating disorder, bipolar disorder, borderline personality disorder, bromidrosiphobia, bruxism, bulimia nervosa, cainophobia, cancerophobia, cardiophobia, cheimatophobia, cherophobia, child abuse, chrematophobia, chronic stress, claustrophobia, cocaine withdrawal, coitophobia, combat stress reaction, coulrophobia(fear of clowns), delirium tremens, dementia, demophobia
Pulmonary | Airway obstruction, anaphylaxis, aspiration pneumonia, asthma, chest pain, chronic obstructive pulmonary disease, chronic respiratory failure, decreased oxygen saturation, diaphragmatic paralysis, emphysema, hyperoxia, hyperventilation syndrome, hyperventilation, pulmonary edema, pulmonary embolism, pneumonia, pneumothorax, respiratory alkalosis, stridor
Renal / Electrolyte | Cystitis, Electrolyte disturbance, hematuria syndrome, lupus, Uremia
Rheum / Immune / Allergy | 22q11.2 deletion syndrome, anaphylaxis, fibromyalgia, Graves disease, Gulf War syndrome, hypersensitivity to food, insect bite allergy, rheumatoid arthritis, lupus, paraneoplastic limbic encephalitis, polyarteritis nodosa, temporal arteritis, velocardiofacial syndrome, vitiligo, Wilson's disease
Sexual | Female hysteria, neurosyphilis, puberty
Trauma | Concussion, head injury,
Urologic | hematuria syndrome, subarachnoid hemorrhage
Dental | No underlying causes

### Causes in Alphabetical Order

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* 22q11.2 deletion syndrome
* Abuse
* Acamprosate calcium
* Accelerated hypertension
* Achluophobia
* Acne
* Acousticophobia
* Acrophobia
* Acute coronary syndromes
* Acute intermittent porphyria
* Acute stress disorder
* Addiction
* Addison's disease
* Adjustment disorder
* Adrenal cortex diseases
* Adrenal gland hypofunction
* Adrenal hypertension
* Adrenal tumor
* Aerophobia(Fear of flying)
* Affective disorders
* Affective spectrum
* Africanized honeybee
* Aging brain syndrome
* Agoraphobia
* Agyrophobia
* Aichmophobia
* Airway obstruction
* Akathisia
* Alcohol withdrawal
* Alcohol intoxication
* Alcohol-induced hypertension
* Alcoholism
* Alektorophobia
* Algophobia
* Alpha-methyltryptamine
* Alzheimer disease
* Amantadine
* Amaxophobia
* Ambien withdrawal
* Amines
* Amineptine
* Amphetamine
* Amphetamine abuse
* Amphetamine withdrawal
* Amphetamine-induced hypertension
* Amychophobia
* Anemia
* Anaphylaxis
* Angina pectoris
* Anglophobia
* Aniracetam
* Anorexia nervosa
* Anoxemia
* Anthophobia
* Anthropophobia
* Antidepressants
* Antipsychotic (withdrawal)
* Antlophobia
* Aortic aneurysm, familial abdominal
* Arachnophobia
* Aripiprazole
* Armodafinil
* Asperger syndrome
* Aspiration pneumonia
* Aspirin intolerance
* Asthma
* Astraphobia
* Atelophobia
* Atripala (Efavirenz, emtricitabine and tenofovir disoproxil fumarate)
* Attention deficit hyperactivity disorder
* Attenuated congenital adrenal hyperplasia
* Autism
* Autoimmune limbic encephalitis
* Autoimmune thyroid diseases
* Autonomic dysreflexia
* Autonomic hyperreflexia
* Autophobia
* Azinphos-methyl
* Bacillophobia
* Bacterial pericarditis
* Bacterial pneumonia
* Bacteriophobia
* Barbiturate abuse
* Barium nitrate
* Barophobia
* Bathmophobia
* Batrachophobia
* Behavioral disorders
* Belonephobia
* Benign fasciculation syndrome
* Benzodiazepine abuse
* Benzodiazepine withdrawal syndrome
* Bibliophobia
* Binge eating disorder
* Biperiden
* Bipolar disorder
* Borderline personality disorder
* Bortezomib
* Brain fag syndrome
* Brain tumor
* Briquet syndrome
* Bromidrosiphobia
* Brontophobia
* Brucellosis
* Bruxism
* Bulimia nervosa
* Bumblebee
* Buprenorphine sublingual and buprenorphine and naloxone sublingual
* Bupropion
* Burning mouth syndrome
* Buspirone
* Butorphanol
* Caffeine addiction
* Cainophobia
* Cancerophobia
* Cannabis
* Carbamate insecticide poisoning
* Carbamazepine
* Carbaryl
* Carbon disulfide
* Carcinoid syndrome
* Carcinophobia
* Cardiac arrhythmia
* Cardiac tamponade
* Cardiogenic shock
* Cardiophobia
* Castration anxiety
* Catoptrophobia
* Celiac disease
* Cenophobia
* Cephalothoracic progressive lipodystrophy
* Ceraunophobia
* Cerebrovascular disease
* Chloropicrin
* Chronic fatigue syndrome
* Chaetophobia
* Cheimatophobia
* Chemical addiction
* Cherophobia
* Chest pain
* Child abuse
* Chlordecone
* Cholesteatoma
* Chrematophobia
* Chromosome 22q deletion
* Chromosome 22q11.2 deletion syndrome
* Chronic constrictive pericarditis
* Chronic obstructive pulmonary disease
* Chronic orthostatic hypotension
* Chronic respiratory failure
* Chronic stress
* Chronophobia
* Cibophobia
* Cimetidine
* Claustrophobia
* Kleptophobia
* Clofarabine injection
* Cocaine
* Cocaine addiction
* Cocaine withdrawal
* Cocaine-induced hypertension
* Coitophobia
* Combat stress reaction
* Concussion
* Congenital adrenal hyperplasia
* Congenital heart disease
* Congenital hepatic porphyria
* Congestive cardiac failure
* Conn syndrome-induced hypertension
* Constrictive pericarditis
* Constrictive tuberculous pericarditis
* Corticosteroid-induced hypertension
* Coulrophobia(fear of clowns)
* Crack addiction
* Crack withdrawal
* Crohn's disease
* Cryophobia( fear of ice and frost)
* Crystal meth addiction
* Crystallophobia
* Cushing's disease
* Cushing's syndrome
* Cushing's syndrome-induced hypertension
* Cyberchondria
* Cyclosporine toxicity
* Cyclosporine-induced hypertension
* Cynophobia (abnormal fear of dogs)
* Cystitis
* DDT
* Darvocet withdrawal
* Decreased cardiac output
* Decreased oxygen saturation
* Deep water blackout
* Delirium tremens
* Delirium
* Delphinium poisoning
* Dementia
* Demerol withdrawal
* Demonophobia (fear of demons)
* Demophobia
* Depersonalization
* Deposition diseases related fibromyalgia
* Depression
* Dermatillomania
* Dexamethasone oral
* Dexedrine overdose
* Dextroamphetamine and amphetamine
* Dhat syndrome
* Diabetes
* Diaphragmatic paralysis
* Dicyclomine
* Diethylcathinone
* Diethylpropion
* Dilaudid withdrawal
* Diphenhydramine
* Discontinuation syndrome
* Domatophobia
* Dosulepin hydrochloride (withdrawal)
* Doxylamine
* Drug withdrawal
* Drug abuse
* Drug-induced hypertension
* Dual disorder
* Dysmorphophobia
* Dysomnia
* Early-onset Alzheimer's disease
* Eating disorder
* ECA stack
* Ecclesiophobia(fear of churches)
* Ecophobia(abnormal fear or dislike of returning home)
* Ecstasy addiction
* Ecstasy withdrawal
* Efavirenz
* Eisoptrophobia(scared of your own reflection)
* Elective mutism
* Electrolyte disturbance
* Electrophobia(is the fear of electricity)
* Ailurophobia(irrational fear of cats)
* Emetophobia
* Emotional conflict
* Emotional disorders
* Emphysema
* Encephalitis
* Enetophobia
* Enoxacin
* Entomophobia(fear of ants)
* Equinophobia
* Ereuthophobia
* Ergasiophobia
* Ergophobia
* Erotophobia
* Erythrophobia(fear of redness)
* Erythropoietin-induced hypertension
* Ethcathinone
* Ethylamine
* Familial dysautonomia
* Fear
* Fear of bees
* Fear of childbirth
* Fear of children
* Female hysteria
* Fentanyl oral transmucosal
* Fentanyl skin patches
* Fexofenadine and pseudoephedrine
* Fibromyalgia
* Financial stress
* Fludrocortisone acetate
* Fluoxetine
* Fluphenazine
* Fluticasone oral inhalation
* Food additives
* Frigophobia
* Gabapentin
* Galeophobia(fear of dead fish)
* Gamophobia
* Gastrointestinal disorders
* General somatic pain
* Generalized anxiety disorder
* Geniophobia
* Genuphobia(fear of ones own knees)
* Gephyrophobia
* Gerascophobia
* Gerontophobia
* Geumophobia
* Ginseng overdose
* Ginseng adverse reaction
* Glatiramer acetate
* Glossophobia
* Glycogen storage disease type 6
* Glycopyrrolate
* Golden seal overdose
* Graphophobia
* Graves disease
* Guarana overuse
* Gulf War syndrome
* Gymnophobia
* Gynophobia
* Hadeophobia
* Hagiophobia
* Hallucinogen
* Haloperidol
* Hamaxophobia
* Haphephobia(fear of touching or of being touched)
* Harpaxophobia
* Head injury
* Heart disease
* Heliophobia
* Helminthophobia(fear of worms)
* Hematophobia
* Hemlock poisoning
* Hepatic encephalopathy syndrome
* Heroin
* Heroin dependence
* Heroin withdrawal
* Herpetophobia
* Heterophobia
* Hexakosioihexekontahexaphobia
* Hiatus hernia
* Hypertension
* High t4 syndrome
* Hippophobia
* Hodophobia
* Holiday stress
* Homophobia
* Huntington's disease
* Hydrocodone
* Hydrocortisone
* Hydrophophobia(fear of rabies)
* Hydroxyzine
* Hyperaldosteronism-induced hypertension
* Hyperglycemia
* Hyperparathyroidism
* Hyperoxia
* Hypersensitivity to food
* Hypersomnia
* Hypertension
* Hypertension due to bilateral renal artery stenosis
* Hypertension
* Hypertension, essential
* Hyperthyroidism
* Hyperventilation
* Hyperventilation syndrome
* Hypervigilance
* Hypnophobia
* Hypoadrenalism
* Hypochondria
* Hypoglycaemia
* Hypoparathyroidism
* Hypothyroidism
* Hysteria
* Hysterical contagion
* Iatrophobia
* Ichthyophobia(Fear of fish)
* Imatinib
* Inborn amino acid metabolism disorder
* Infectious mononucleosis
* Heritable connective tissue disorders
* Insect bite allergy
* Insomnia
* Insulinoma
* Interferon beta-1a subcutaneous injection
* Interferon beta-1b injection
* Iophobia(fear of being poisoned)
* Irritable bowel syndrome
* Irukandji syndrome
* Kakorrhaphiophobia( persistent fear of failure)
* Kenophobia
* Keraunophobia
* Kinetophobia(pathological fear of movement)
* Kleptophobia
* Kynophobia
* Lead
* Lead poisoning
* Leuprolide
* Levetiracetam
* Levodopa
* Licorice-induced hypertension
* Lidocaine toxicity
* Limbic encephalitis
* Limnophobia
* Linonophobia
* Liothyronine
* Lofepramine
* Lomefloxacin hydrochloride
* Loratadine
* Lupus
* Lysergic acid diethylamide
* Major depressive disorder
* Malignant hypertension
* Malingering
* Manganese
* Mania
* Marijuana addiction
* Marijuana withdrawal
* Mc leod neuroacanthocytosis syndrome
* MDPV
* Mechanophobia(fear of machines)
* Medical students' disease
* Menopause
* Mental breakdown
* MeOPP
* Mercury
* Mesalamine
* Methamphetamine
* Methamphetamine overdose
* Methamphetamine withdrawal
* Methylenedioxymethamphetamine
* Methylphenidate transdermal
* Methylprednisolone oral
* Methylprednisolone sodium succinate injection
* Metrazol
* Middle ear infection
* Mifepristone
* Migraine
* Mild chronic pain
* Mild traumatic brain injury
* Mirtazapine
* Mysophobia
* Mitral valve prolapse
* Mixed connective tissue disease
* Moccasin snake poisoning
* Moclobemide
* Modafinil
* Moderate chronic pain
* Monocrotophos
* Monophobia
* Mood disorder
* MSG
* Morning glory poisoning
* Motofen
* Mountain sickness
* Multiple endocrine neoplasia
* Multiple sclerosis
* Mumps
* Chronic fatigue syndrome
* Musophobia
* Myocardial infarction
* Myofascial pain syndromes
* Nabilone
* Naltrexone
* Narcotic addiction
* Nasal decongestant-induced hypertension
* Near-death experience
* Necrophobia(irrational fear of dead things)
* Negrophobia
* Neophobia
* Neurosis
* Neurosyphilis
* Neurotoxicity syndromes
* Niacin
* Nicotine
* Night terror
* Nilutamide
* Nitrogen narcosis
* Noctiphobia
* Nonaffective psychosis
* Norfloxacin
* Norplant
* Nortriptyline
* Nosophobia
* Nymphomania
* Obsessive compulsive disorder
* Obstructive sleep apnea
* Ochlophobia
* Oculogyric crisis
* Odontophobia
* Odynophobia
* Oikophobia
* Oil-based paint
* Olfactophobia
* Opioid addiction
* Opium withdrawal
* Oprelvekin
* Organophosphate insecticide poisoning
* Orlistat
* Ornithophobia(irrational fear of birds)
* Orthostatic intolerance
* Orthostatic intolerance
* Osmophobia
* Oxaliplatin injection
* Oxaprozin
* Oxycontin addiction
* Pain killer addiction
* Palinopsia
* Panic attack
* Panic disorder
* Panphobia
* Paraneoplastic limbic encephalitis
* Paranoia
* Parasitophobia
* Parathyroid diseases
* Parkinson disease
* Paroxetine
* Pediophobia
* Pellagra
* Penis panic
* Pentostatin
* Peptic ulcer
* Percocet withdrawal
* Pergolide
* Personality disorders
* PFPP
* Phagophobia
* Pharmacophobia
* Phasmophobia(fear of ghosts)
* Phencyclidine
* Phenibut (withdrawal)
* Phenylephrine
* Pheochromocytoma
* Pheochromocytoma-induced hypertension
* Phobia
* Phobophobia
* Phonophobia
* Photophobia
* Physical addiction
* Pipradrol
* Piracetam
* Pituitary dysfunction
* Pneumothorax
* Pogonophobia(fear of beards)
* Polyarteritis nodosa
* Porphyria
* Posaconazole
* Post traumatic stress disorder
* Post-concussion syndrome
* Postoperative pulmonary embolism
* Postpartum depression
* Postpartum hyperthyroidism
* Postpartum thyroiditis
* Posttraumatic stress disorder
* Postural orthostatic tachycardia syndrome
* Potophobia(fear of alcohol)
* Premenstrual dysphoric disorder
* Premenstrual syndrome
* Prescribed medication addiction
* Progressive external ophthalmoplegia
* Promethazine
* Pseudodysphagia
* Pseudoephedrine
* Psychiatric medication
* Psychoactive drug
* Psychological addiction
* Psychological disorders
* Psychological trauma
* Psychoneurosis
* Psychophobia
* Puberty
* Pulmonary edema
* Pulmonary embolism
* Pyogenic pericarditis
* Pyrophobia
* Pyrovalerone
* Quetiapine
* Rabies
* Rape trauma syndrome
* Reactive attachment disorder of early childhood
* Reactive depression
* Rebound hypertension
* Reboxetine
* Red fire ant
* Renovascular hypertension
* Resistant hypertension
* Respiratory alkalosis
* Respiratory depression
* Respiratory failure
* Rheumatic pericarditis
* Rheumatoid arthritis
* Right parietal lobe syndrome
* Rilmenidine
* Rilpivirine
* Ringxiety
* Risperidone
* Ritalin withdrawal
* Ropinirole
* Salicylate
* Sassafras oil adverse reaction
* Schizophrenia
* Scoleciphobia
* Scopophobia
* Scotophobia
* Sea snake poisoning
* Secondary pulmonary hypertension
* Selective serotonin reuptake inhibitor
* Selenium dioxide
* Self harm
* Separation anxiety disorder
* Serious emotional disturbance
* Serotonin syndrome
* Serotonin-norepinephrine reuptake inhibitor
* Sertraline
* Severe chronic pain
* Shallow breathing
* Shock
* Sibutramine
* Siderodromophobia
* Sinus arrhythmia
* Sinus node disease
* Sinus tachycardia
* Sitophobia
* Situational depression
* Sleep apnea
* Sleep disturbance
* Sleeping pill addiction
* Social anxiety
* Social anxiety disorder
* Social phobia
* Sociophobia
* Sodium monofluoroacetate
* Somatic symptom disorder
* Somatoform disorder
* Somniphobia
* Sotos syndrome
* Specific phobias
* Stachybotrys chartarum
* Stage fright
* Stasiphobia
* Stiff person syndrome
* Stranger anxiety
* Stress
* Rheumatoid arthritis
* Stridor
* Strychnine
* Stygiophobia
* Subacute thyroiditis
* Subarachnoid hemorrhage
* Substance abuse
* Substance withdrawal syndrome
* Sulfite
* Sunday night blues
* Supraventricular tachycardia
* Sydenham chorea
* Sympathomimetic drug
* Sympathomimetics
* Systemic lupus erythematosus
* Taijin-kyofusho syndrome
* Tanorexia
* Technophobia(fear or dislike of advanced technology)
* Technostress
* Bruxism
* Telephone phobia
* Temozolomide
* Temporal arteritis
* Temporal lobe epilepsy
* Tension myositis
* Terbutaline
* Test anxiety
* Tetanus
* Thalassophobia(persistent fear of the sea)
* Thallium
* Thanatophobia
* Theophobia
* Thermophobia
* Thixophobia( fear of touching or of being touched)
* Thyroid disorders
* Tocophobia( fear of pregnancy and childbirth)
* Toluene
* Topiramate
* Topophobia
* Toxic shock syndrome
* Toxicophobia
* Tramadol
* Tranquilizer addiction
* Tranquilizer withdrawal
* Transfusion reaction
* Traumatic stress
* Traumatophobia
* Trazodone
* Tretinoin
* Triamcinolone oral
* Triazolam
* Trichodynia
* Trichophobia
* Trichotillomania
* Trifluoperazine
* Trifluoromethylphenylpiperazine
* Trimipramine
* Triskaidekaphobia
* Troell-junet syndrome
* Tropical fire ant
* Trypanophobia
* Tuberculous pericarditis
* Tyrannophobia
* Ulcerative colitis
* Uremia
* Uremic pericarditis
* Urophobia
* Vaccinophobia
* Varnish makers' and painters' naptha
* Variant Creutzfeldt-Jakob disease
* Variegate porphyria
* Vascular malformations of the brain
* Velocardiofacial syndrome
* Venerupin shellfish poisoning
* Vermiphobia(fear of worms)
* Vicodin withdrawal
* Viral pericarditis
* Viral pneumonia
* Vitiligo
* Volume depletion
* WAGR syndrome
* Wasp
* Wernicke-korsakoff syndrome
* Westphal disease
* Whiplash
* Wilms tumor
* Wilson's disease
* Alcohol Withdrawal
* Wolfram's disease
* Workplace stress
* Xanax withdrawal
* Xanthophobia
* Xenophobia
* Xerophobia
* Xylene
* Yohimbine
* Zelophobia
* Zemmiphobia
* Ziprasidone
* Zoophobia
* Zopiclone

## References

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1. ↑ Thobois S, Prange S, Sgambato-Faure V, Tremblay L, Broussolle E (2017). "Imaging the Etiology of Apathy, Anxiety, and Depression in Parkinson's Disease: Implication for Treatment". Curr Neurol Neurosci Rep. 17 (10): 76. doi:10.1007/s11910-017-0788-0. PMID 28822071.
2. ↑ Tseng CC, Hu LY, Liu ME, Yang AC, Shen CC, Tsai SJ (2017). "Bidirectional association between Bell's palsy and anxiety disorders: A nationwide population-based retrospective cohort study". J Affect Disord. 215: 269–273. doi:10.1016/j.jad.2017.03.051. PMID 28359982.
3. ↑ Pham T, Sauro KM, Patten SB, Wiebe S, Fiest KM, Bulloch A, Jetté N (2017). "The prevalence of anxiety and associated factors in persons with epilepsy". Epilepsia. 58 (8): e107–e110. doi:10.1111/epi.13817. PMID 28597927. Vancouver style error: initials (help)
4. ↑ Mitsikostas DD, Ljubisavljevic S, Deligianni CI (2017). "Refractory burning mouth syndrome: clinical and paraclinical evaluation, comorbiities, treatment and outcome". J Headache Pain. 18 (1): 40. doi:10.1186/s10194-017-0745-y. PMC 5371535. PMID 28357703.
5. ↑ Empty citation (help)

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