1. Medicine (Level 2)
   1. First aid (Level 4)
      1. First aid kit
   2. Health care (Level 4)
2. Medical ethics (Level 4)
3. Medical device
4. Medical emergency
5. Medicalization
6. Emergency medical services (Level 4)
7. Germ theory of disease
8. Healthcare industry
9. Search and rescue
10. Triage
11. White coat

This section contains 11 articles.

1. Health professional
2. Emergency medical technician
3. Nursing (Level 3)
   1. Midwifery
4. Paramedic
5. Pharmacist (Level 4)
6. Physician (Level 4)
   1. General practitioner
7. Surgeon
   1. Dentist
8. Veterinarian

This section contains 11 articles.

1. Health facility
2. Hospital (Level 3)
3. Clinic
4. Doctor's office
5. Emergency department (Level 4)
6. Intensive care unit
7. Operating theater
8. Pharmacy (Level 4)
9. Psychiatric hospital (Level 4)
10. Residential treatment center
11. Trauma center

This section contains 11 articles.

1. Medical procedure
2. Abortion (Level 3)
3. Anesthesia (Level 3)
   1. General anaesthesia
   2. Local anesthesia
4. Blood donation
5. End-of-life care
   1. Hospice
   2. Palliative care (Level 4)
6. Medical test (Level 4)
7. Sterilization (medicine) (Level 4)

This section contains 30 articles.

1. Medical diagnosis (Level 4)
2. Physical examination (Level 4)
3. Screening (medicine)
4. Auscultation
   1. Heart sounds
   2. Respiratory sounds
5. Autopsy (Level 4)
6. Biopsy (Level 4)
7. Blood test (Level 4)
   1. Blood culture
   2. Complete blood count
   3. Comprehensive metabolic panel
   4. Glucose test
   5. Lipid profile
8. Diagnostic microbiology
9. Eye examination (Level 4)
10. Lumbar puncture (Level 4)
11. Palpation
12. Pap test (Level 4)
13. Percussion (medicine)
14. Reflex (Level 4)
15. Telehealth
16. Urine test
    1. Drug test
    2. Pregnancy test
17. Vital signs
    1. Blood pressure (Level 4)
    2. Human body temperature
    3. Pulse (Level 4)
    4. Respiratory rate

This section contains 41 articles.

1. Therapy (Level 4)
2. Blood transfusion (Level 4)
3. Cardiopulmonary resuscitation
4. Cauterization
5. Chemotherapy (Level 4)
6. Cure
7. Defibrillation
8. Hemodialysis
9. Intravenous therapy
10. Massage
11. Mouth-to-mouth resuscitation
12. Occupational therapy
13. Oral rehydration therapy
14. Oxygen therapy
15. Phage therapy
16. Pharmacotherapy
17. Physical therapy (Level 4)
18. Radiation therapy (Level 4)
19. Reperfusion therapy
20. Speculum (medicine)
21. Symptomatic treatment (Level 4)
22. Tracheal intubation

This section contains 7 articles.

1. Crown (dental restoration)
2. Dental braces
3. Dental extraction
4. Dental implant
5. Dental restoration (Level 4)
6. Root canal treatment
7. Impacted wisdom teeth

This section contains 12 articles.

1. Surgery (Level 3)
2. Amputation (Level 4)
3. Angioplasty
4. Caesarean section
5. Debridement
6. Hysterectomy
7. Incision and drainage
8. LASIK
9. Neurosurgery
10. Organ transplantation (Level 4)
11. Plastic surgery (Level 4)
12. Reduction (orthopedic surgery)

1. Human body (Level 3)
   1. Cadaver
   2. Human variability
2. Blood type (Level 4)
   1. ABO blood group system
   2. Rh blood group system
3. Celiac plexus
4. Human head
   1. Human brain (Level 4)
   2. Forehead
   3. Brow ridge
   4. Face (Level 4)
      1. Human eye (Level 4)
      2. Human nose
   5. Facial skeleton
      1. Mandible
   6. Human mouth
      1. Human tooth (Level 4)
         1. Root canal (Level 4)
      2. Uvula
      3. Tonsil
   7. Chin
5. Human digestive system
   1. Gastrointestinal tract (Level 4)
6. Human musculoskeletal system
   1. Anterior cruciate ligament
   2. Human back
      1. Latissimus dorsi muscle
   3. Human skeleton (Level 4)
   4. Shoulder
      1. Deltoid muscle
   5. Pectoralis major
   6. Pelvic floor
   7. Rectus abdominis muscle
7. Human skin
   1. Wrinkle
8. Human voice (Level 4)
9. Arm (Level 4)
   1. Biceps
   2. Forearm
   3. Hand (Level 4)
      1. Finger (Level 4)
         1. Thumb
         2. Index finger
         3. Middle finger
         4. Ring finger
         5. Little finger
   4. Triceps
10. Hip
    1. Gluteus maximus
11. Human reproductive system
    1. Female ejaculation
       1. G-spot
    2. Human penis
    3. Vulva
       1. Labia
12. Human anus
    1. Hemorrhoid
13. Human leg (Level 4)
    1. Calf (leg)
    2. Hamstring
    3. Thigh
    4. Foot (Level 4)
       1. Toe

1. Medical specialty
2. Allied health professions
3. Anesthesiology
4. Angiology (Level 4)
5. Audiology
6. Cardiology (Level 4)
7. Dentistry (Level 3)
   1. Orthodontics
8. Dermatology (Level 4)
9. Endocrinology
10. Emergency medicine
11. Family medicine
12. Gastroenterology (Level 4)
13. Geriatrics (Level 4)
14. Hematology (Level 4)
15. Hepatology
16. Immunology (Level 4)
17. Infectious diseases (medical specialty)
18. Internal medicine
    1. Acute medicine
19. Intensive care medicine
20. Life extension
    1. Senescence
    2. Supercentenarian
21. Medical genetics
22. Medical microbiology
23. Nephrology
24. Neurology (Level 4)
25. Nuclear medicine
26. Occupational medicine
27. Oncology (Level 4)
28. Ophthalmology (Level 4)
29. Optometry (Level 4)
30. Orthopedic surgery
31. Orthotics
32. Otorhinolaryngology (Level 4)
33. Pathology
34. Pediatrics (Level 4)
    1. Neonatology
35. Pharmacology (Level 4)
    1. Pharmacodynamics
    2. Pharmacokinetics (Level 4)
    3. Prescription drug (Level 4)
36. Podiatry
37. Psychiatry (Level 4)
38. Public health (Level 4)
    1. Epidemiology (Level 4)
    2. Health education
    3. Preventive healthcare (Level 4)
    4. WASH
39. Pulmonology (Level 4)
40. Radiology (Level 4)
41. Reproductive medicine
    1. Andrology
    2. Obstetrics and gynaecology (Level 4)
       1. Obstetrics
       2. Gynaecology
    3. Sexual and reproductive health (Level 4)
42. Rheumatology
43. Sports medicine
44. Toxicology (Level 4)
45. Traumatology
46. Urology (Level 4)
47. Vaccination (Level 4)
48. Veterinary medicine (Level 4)

This section contains 25 articles.

1. Drug (Level 3)
2. Adverse effect
3. Drug class
   1. Anatomical Therapeutic Chemical Classification System
   2. Depressant
   3. Hallucinogen
   4. Sedative
   5. Stimulant
4. Drug interaction
5. Medication (Level 3)
6. Placebo (Level 4)
7. Psychoactive drug
8. Drug delivery
   1. Dosage form
      1. Capsule (pharmacy)
      2. Inhaler
      3. Nebulizer
      4. Tablet (pharmacy)
   2. Route of administration
      1. Injection (medicine)
      2. Oral administration
      3. Topical medication
9. Drug discovery
10. Side effect
11. WHO Model List of Essential Medicines

This section contains 126 articles.

1. Amphetamine (Level 4)
   1. Methamphetamine
2. Bronchodilator
   1. Salmeterol
   2. Salbutamol
3. Calamine
4. Carbamazepine
5. Ephedrine
6. Epinephrine (medication)
7. Gabapentin
8. Heparin
9. Hydrocortisone
10. Insulin (medication)
11. Loperamide
12. Propranolol
13. Sildenafil
14. Warfarin

This section contains 14 articles.

1. Anesthetic
2. General anaesthetic
   1. Atropine
   2. Halothane
   3. Isoflurane
   4. Ketamine
   5. Midazolam
   6. Nitrous oxide (medication)
   7. Propofol
3. Local anesthetic
   1. Benzocaine
   2. Bupivacaine
   3. Lidocaine
   4. Procaine

This section contains 6 articles.

1. Antihistamine
2. Cimetidine
3. Diphenhydramine
4. Hydroxyzine
5. Loratadine
6. Ranitidine

This section contains 30 articles.

1. Antimicrobial
2. Antimicrobial resistance
3. Antiseptic
   1. Alcohols (medicine)

This section contains 14 articles.

1. Antibiotic (Level 3)
2. Amoxicillin
3. Ampicillin
4. Azithromycin
5. Cephalosporin
   1. Cefalexin
   2. Cefazolin
6. Erythromycin
7. Neomycin/polymyxin B/bacitracin
8. Penicillin (Level 4)
9. Tetracycline antibiotics
   1. Doxycycline
   2. Tetracycline
   3. Tigecycline

This section contains 4 articles.

1. Antiviral drug
2. Aciclovir
3. Oseltamivir
4. Zidovudine

This section contains 3 articles.

1. Antifungal
2. Amphotericin B
3. Fluconazole

This section contains 5 articles.

1. Antiparasitic
2. Albendazole
3. Ivermectin
4. Nitazoxanide
5. Quinine (Level 4)

This section contains 13 articles.

1. Analgesic (Level 4)
2. Medical cannabis
3. Nonsteroidal anti-inflammatory drug
   1. Aspirin (Level 4)
   2. Ibuprofen
   3. Naproxen
4. Opioid
   1. Codeine
   2. Fentanyl
   3. Hydrocodone
   4. Methadone
   5. Oxycodone
5. Paracetamol

This section contains 18 articles.

1. Psychiatric medication
2. Antidepressant
   1. Amitriptyline
   2. Bupropion
   3. Clomipramine
   4. Selective serotonin reuptake inhibitor
   5. Fluoxetine
   6. Imipramine
   7. Sertraline
3. Anxiolytic
   1. Benzodiazepine (Level 4)
   2. Clonazepam
      1. Diazepam
4. Antipsychotic
   1. Chlorpromazine
   2. Fluphenazine
5. Mood stabilizer
   1. Lithium (medication)

This section contains 15 articles.

1. Vaccine (Level 3)
   1. Vaccine hesitancy (Level 4)
      1. Vaccines and autism
2. COVID-19 vaccine
3. DPT vaccine
4. HPV vaccine
5. Influenza vaccine
6. Malaria vaccine
7. MMR vaccine
8. Polio vaccine (Level 4)
9. Rabies vaccine
10. Smallpox vaccine (Level 4)
11. Typhoid vaccine
12. Varicella vaccine
13. Yellow fever vaccine

This section contains 13 articles.

1. Recreational drug use
2. Alcohol (drug) (Level 4)
   1. Alcohol intoxication (Level 4)
3. Cannabis (drug) (Level 4)
4. Heroin
5. MDMA
6. Opium (Level 4)
7. Phencyclidine
8. Psychedelic drug
   1. LSD
   2. Mescaline
   3. Psilocybin
9. Tobacco (Level 4)

1. Abscess
2. Acne (Level 4)
3. Acromegaly
4. Allergy (Level 3)
   1. Allergen
   2. Allergic rhinitis
   3. Anaphylaxis
   4. Food allergy
5. Alzheimer's disease (Level 4)
6. ALS
7. Anemia (Level 4)
8. Appendicitis
9. Arthritis (Level 4)
   1. Rheumatoid arthritis
   2. Osteoarthritis
10. Arthropathy
11. Asthma (Level 3)
12. Atherosclerosis
13. Autoimmune disease (Level 4)
    1. Lupus
    2. Psoriasis
    3. Vitiligo
14. Bronchitis (Level 4)
15. Chronic pain
16. Chronic obstructive pulmonary disease (Level 4)
    1. Emphysema
17. Cirrhosis (Level 4)
18. Dementia (Level 4)
19. Dehydration
20. Dermatitis
    1. Atopic dermatitis
21. Diabetes (Level 3)
    1. Type 1 diabetes
    2. Type 2 diabetes
    3. Gestational diabetes
22. Diverticulitis
23. Dysmenorrhea
24. Endometriosis
25. Epilepsy (Level 4)
26. Gallstone
27. Gout (Level 4)
28. Genetic disorder
    1. Cystic fibrosis
    2. Haemophilia
    3. Huntington's disease
    4. Sickle cell disease
29. Hyperthyroidism
30. Hypothyroidism
31. Inflammatory bowel disease
    1. Crohn's disease
    2. Ulcerative colitis
32. Irritable bowel syndrome
33. Kidney failure
34. Kidney stone disease
35. Migraine (Level 4)
36. Multiple sclerosis (Level 4)
37. Myalgic encephalomyelitis/chronic fatigue syndrome
38. Neglected tropical diseases
39. Osteoporosis
40. Parkinson's disease (Level 4)
41. Periodontal disease
    1. Gingivitis
    2. Chronic periodontitis
42. Pleural effusion
43. Polycystic ovary syndrome
44. Sexual dysfunction
    1. Erectile dysfunction
45. SIDS
46. Tooth decay (Level 4)

1. Cardiovascular disease (Level 3)
2. Aneurysm (Level 4)
3. Arteriosclerosis
4. Atrial fibrillation
5. Congenital heart defect
6. Coronary artery disease
7. Hypercholesterolemia
8. Hypertension (Level 4)
9. Hypertensive heart disease
10. Hypotension
11. Myocardial infarction (Level 4)
12. Peripheral artery disease
13. Shock (circulatory) (Level 4)
    1. Cardiogenic shock
    2. Distributive shock
       1. Septic shock
    3. Hypovolemic shock
    4. Obstructive shock
14. Stroke (Level 3)
15. Thrombosis

This section contains 6 articles.

1. Injury (Level 3)
   1. Injury in humans
2. Major trauma (Level 4)
3. Polytrauma
4. Wound (Level 4)
5. Scar

This section contains 59 articles.

1. Abrasion (medicine)
2. Asphyxia
   1. Choking
   2. Drowning
3. Avulsion injury
4. Bleeding (Level 4)
   1. Internal bleeding
   2. Nosebleed
5. Blunt trauma (Level 4)
6. Bone fracture (Level 4)
   1. Hip fracture
   2. Mandibular fracture
   3. Nasal fracture
   4. Open fracture
   5. Skull fracture
7. Brain injury (Level 4)
   1. Concussion (Level 4)
8. Bruise (Level 4)
9. Burn (Level 4)
   1. Scalding
   2. Sunburn
10. Cardiac arrest (Level 4)
11. Dental trauma
    1. Dental avulsion
12. Frostbite (Level 4)
13. Heat illness
    1. Heat stroke
    2. Hyperthermia
14. Hernia
    1. Disc herniation
       1. Sciatica
15. Hypothermia (Level 4)
16. Hypoxia (medicine) (Level 4)
17. Ingrown nail
18. Joint dislocation
19. Mouth ulcer
20. Penetrating trauma
    1. Gunshot wound
    2. Stab wound
21. Respiratory failure (Level 4)
22. Scoliosis
23. Splinter
24. Sprain
25. Strain (injury)
    1. Repetitive strain injury
       1. Carpal tunnel syndrome
26. Tendinopathy
    1. Tennis elbow
27. Toxic injury
    1. Asbestosis
    2. Drug overdose
    3. Poison (Level 4)
       1. Carbon monoxide poisoning
       2. Lead poisoning
       3. Mercury poisoning
       4. Mushroom poisoning (Level 4)
    4. Snakebite
    5. Toxicity (Level 4)
    6. Toxin

1. Amusia
2. Bell's palsy
3. Birth defect
4. Cerebral palsy (Level 4)
5. Color blindness (Level 4)
   1. Achromatopsia
6. Developmental coordination disorder
7. Down syndrome (Level 4)
8. Dwarfism
9. Hearing loss (Level 4)
   1. Deafness
10. Fetal alcohol spectrum disorder
11. Intellectual disability (Level 4)
12. Learning disability
    1. Dyslexia (Level 4)
13. Low back pain
14. Physical disability (Level 4)
15. Speech–language pathology
    1. Aphasia
    2. Muteness
    3. Speech disorder
       1. Stuttering
16. Visual impairment (Level 4)
    1. Cataract
    2. Glaucoma
    3. Refractive error
       1. Astigmatism
       2. Farsightedness
       3. Myopia
       4. Presbyopia

1. Brain tumor (Level 4)
   1. Medulloblastoma
2. Bone tumor
3. Cancer (Level 3)
   1. Metastasis
4. Carcinogen (Level 4)
5. Cervical cancer
6. Breast cancer (Level 4)
7. Colorectal cancer (Level 4)
8. Head and neck cancer
9. Leukemia (Level 4)
10. Liver cancer
11. Lung cancer (Level 4)
12. Lymphoma (Level 4)
    1. Hodgkin lymphoma
13. Mesothelioma
14. Neoplasm (Level 4)
15. Ovarian cancer
16. Pancreatic cancer
17. Penile cancer
18. Prostate cancer (Level 4)
19. Sarcoma
20. Skin cancer (Level 4)
    1. Melanoma (Level 4)
21. Stomach cancer
22. Testicular cancer

This section contains 30 articles.

1. Infection (Level 3)
   1. Opportunistic infection
2. Pathogen (Level 4)
   1. Fungal infection (Level 4)
   2. Parasitic disease
      1. Helminthiasis
   3. Pathogenic bacteria
   4. Virus (Level 3)
      1. Introduction to viruses
      2. Viral disease
      3. Virus latency
   5. Prion (Level 4)
3. Epidemic
   1. Pandemic
4. Immunity (medicine)
   1. Immunization
   2. Inoculation
5. Pathogen transmission
   1. Airborne transmission
   2. Disease vector
      1. Zoonosis
         1. Mosquito-borne disease
         2. Tick-borne disease
      2. Reverse zoonosis
   3. Foodborne illness (Level 4)
   4. Natural reservoir
   5. Sexually transmitted infection (Level 3)
   6. Waterborne disease
      1. Fecal–oral route
6. Immunodeficiency

This section contains 17 articles.

1. Bloodstream infection
2. Conjunctivitis
3. Encephalitis (Level 4)
4. Gangrene (Level 4)
5. Gastroenteritis (Level 3)
   1. Dysentery (Level 4)
6. Hepatitis (Level 4)
7. Keratitis
8. Meningitis (Level 4)
9. Otitis
   1. Otitis externa
   2. Otitis media
10. Pelvic inflammatory disease
11. Respiratory tract infection
    1. Pneumonia (Level 3)
12. Skin infection
13. Urinary tract infection

This section contains 27 articles.

1. Anthrax (Level 4)
2. Brucellosis
3. Botulism (Level 4)
4. Chlamydia (Level 4)
5. Cholera (Level 4)
6. Diphtheria (Level 4)
7. Erysipelas
8. Gonorrhea (Level 4)
9. Glanders
10. Impetigo
11. Legionnaires' disease
12. Leprosy (Level 4)
13. Leptospirosis
14. Lyme disease (Level 4)
15. Pathogenic Escherichia coli
16. Plague (disease)
    1. Bubonic plague (Level 4)
17. Streptococcal pharyngitis
    1. Rheumatic fever
18. Scarlet fever (Level 4)
19. Staphylococcal infection
20. Syphilis (Level 4)
21. Tetanus (Level 4)
22. Tuberculosis (Level 3)
23. Typhoid fever (Level 4)
24. Typhus (Level 4)
25. Whooping cough (Level 4)

This section contains 62 articles.

1. Chickenpox (Level 4)
   1. Shingles
2. Chikungunya
3. Classical swine fever
4. Common cold (Level 3)
5. COVID-19
6. Cowpox
7. Croup
8. Dengue fever (Level 4)
9. Ebola (Level 4)
10. Hand, foot, and mouth disease (Level 4)
11. Hepatitis A
12. Hepatitis B
13. Hepatitis C
14. Hepatitis D
15. Hepatitis E
16. Herpes (Level 4)
    1. Genital herpes
    2. Cold sore
    3. Herpes gladiatorum
    4. Herpes simplex encephalitis
    5. Herpes meningitis
    6. Herpes esophagitis
    7. Neonatal herpes
    8. Eczema herpeticum
    9. Herpes simplex keratitis
    10. Herpetic gingivostomatitis
    11. Herpetic whitlow
17. HIV/AIDS (Level 3)
18. Human papillomavirus infection (Level 4)
19. Infectious mononucleosis
20. Influenza (Level 3)
    1. Avian influenza
21. Japanese encephalitis
22. Measles (Level 4)
23. Mpox
24. Mumps (Level 4)
25. Nipah virus infection
26. Polio (Level 4)
27. Rabies (Level 4)
28. Rift Valley fever
29. Rinderpest
30. Rubella
31. SARS (Level 4)
32. Smallpox (Level 3)
33. West Nile fever (Level 4)
34. Yellow fever (Level 4)
35. Zika fever

This section contains 14 articles.

1. African swine fever virus
2. Coronavirus (Level 4)
3. Hepatitis C virus
4. Herpesviridae
   1. Epstein–Barr virus
   2. Herpes simplex virus
   3. Varicella zoster virus
5. HIV
6. Influenza A virus
7. Influenza B virus
8. Norovirus
9. Orthomyxoviridae
10. SARS-CoV-2 (Level 4)
11. Tobacco mosaic virus (Level 4)

This section contains 4 articles.

1. Athlete's foot
2. Candidiasis
3. Dermatophytosis
4. Onychomycosis

This section contains 8 articles.

1. African trypanosomiasis
2. Amoebiasis
3. Chagas disease
4. Giardiasis
5. Leishmaniasis
6. Malaria (Level 3)
7. Naegleriasis
8. Toxoplasmosis

This section contains 12 articles.

1. Ascariasis
2. Cysticercosis
3. Dracunculiasis
4. Infestation
   1. Head lice infestation
   2. Myiasis
   3. Scabies (Level 4)
5. Lymphatic filariasis
6. Onchocerciasis
7. Schistosomiasis
8. Taeniasis
9. Toxocariasis

This section contains 4 articles.

1. Transmissible spongiform encephalopathy
   1. Bovine spongiform encephalopathy
   2. Creutzfeldt–Jakob disease
   3. Variant Creutzfeldt–Jakob disease

1. Mental disorder (Level 3)
   1. Developmental disorder
2. Anxiety disorder (Level 4)
   1. Phobia (Level 4)
   2. Post-traumatic stress disorder (Level 4)
   3. Generalized anxiety disorder
   4. Social anxiety disorder
   5. Hypochondriasis
   6. Complex post-traumatic stress disorder
3. Attention deficit hyperactivity disorder (Level 4)
4. Autism (Level 4)
   1. Asperger syndrome
   2. High-functioning autism
5. Dissociative disorder
   1. Dissociative identity disorder
   2. Dissociative amnesia
   3. Depersonalization-derealization disorder
6. Catatonia
7. Conduct disorder
8. Eating disorder (Level 4)
   1. Anorexia nervosa
   2. Bulimia nervosa
   3. Pica (disorder)
   4. Body image disturbance
9. Hoarding disorder
10. Kleptomania
11. Mass psychogenic illness
12. Mood disorder
    1. Bipolar disorder (Level 4)
       1. Bipolar I disorder
       2. Bipolar II disorder
    2. Dysthymia
    3. Major depressive disorder (Level 4)
    4. Postpartum depression
    5. Seasonal affective disorder
13. Obsessive–compulsive disorder
    1. Body dysmorphic disorder
14. Oppositional defiant disorder
15. Paranoia
16. Pedophilia (Level 4)
17. Personality disorder (Level 4)
    1. Antisocial personality disorder
    2. Avoidant personality disorder
    3. Borderline personality disorder
    4. Dependent personality disorder
    5. Depressive personality disorder
    6. Histrionic personality disorder
    7. Narcissistic personality disorder
    8. Obsessive–compulsive personality disorder
    9. Paranoid personality disorder
    10. Psychopathy (Level 4)
    11. Schizoid personality disorder
    12. Schizotypal personality disorder
18. Pyromania
19. Schizophrenia (Level 4)
20. Sleep disorder
    1. Bruxism
    2. Insomnia
    3. Jet lag
    4. Narcolepsy
    5. Sleep apnea
    6. Sleepwalking
21. Somatic symptom disorder
22. Suicide crisis
    1. Suicide intervention
    2. Suicide methods
    3. Suicide prevention
23. Tourette syndrome

This section contains 2 articles.

1. Hysteria
2. Neurosis (Level 4)

1. Signs and symptoms
2. Syndrome (Level 4)
3. Abdominal pain
4. Ageusia
   1. Dysgeusia
   2. Hypogeusia
5. Amenorrhea
6. Anosmia
   1. Hyposmia
7. Ataxia
8. Aura (symptom)
9. Blurred vision
10. Coma (Level 4)
    1. Vegetative state (Level 4)
11. Comedo
    1. Pimple
12. Constipation
13. Cough
14. Cramp
15. Cyanosis
16. Diarrhea (Level 4)
17. Dizziness
    1. Vertigo
    2. Lightheadedness
    3. Balance disorder
18. Fatigue
19. Fever
20. Goose bumps
21. Headache
22. Heartburn
23. Heart failure
24. Heart rate
    1. Bradycardia
    2. Tachycardia
25. Hives
26. Hypoesthesia
27. Inflammation (Level 4)
28. Itch
29. Jaundice
30. Myalgia
31. Myoclonus
    1. Hiccup
32. Nausea
33. Nevus
34. Phonophobia
35. Photophobia
36. Psychosis (Level 4)
    1. Delusion (Level 4)
    2. Hallucination (Level 4)
37. Rash
38. Rhinorrhea
    1. Post-nasal drip
39. Seizure
40. Sepsis
41. Shivering
42. Sleep deprivation
43. Sneeze
44. Sore throat
45. Syncope (medicine)
46. Tinnitus
47. Toothache (Level 4)
48. Vomiting
49. Wart

1. Health (Level 3)
   1. Mental health (Level 3)
   2. Men's health
   3. Women's health
2. Ageing (Level 3)
   1. Frailty syndrome
   2. Gerontology
3. Human hair color
4. Hair loss
   1. Alopecia areata
   2. Pattern hair loss
   3. Telogen effluvium
5. Breastfeeding (Level 4)
   1. Breast milk
   2. Extended breastfeeding
   3. Human–animal breastfeeding
   4. Wet nurse
6. Fertilisation (Level 4)
   1. Infertility (Level 4)
   2. In vitro fertilisation
7. Nutrition (Level 3)
   1. Diet (nutrition) (Level 4)
   2. Dietary supplement (Level 4)
   3. Food group (Level 4)
   4. Healthy diet
   5. Human nutrition
   6. Hunger (Level 4)
   7. Lactose intolerance
   8. Malnutrition (Level 4)
      1. Thiamine deficiency
      2. Pellagra
      3. Rickets
      4. Scurvy
      5. Stunted growth
   9. Vitamin (Level 4)
8. Occupational safety and health (Level 4)
   1. Hazard
   2. Personal protective equipment (Level 4)
9. Psychological trauma
10. Quality of life
11. Substance use disorder (Level 4)
    1. Addiction (Level 3)
    2. Alcoholism (Level 3)
    3. Substance dependence (Level 4)
    4. Substance abuse
12. Smoking (Level 3)
    1. Cigar
    2. Cigarette (Level 4)
    3. Electronic cigarette
    4. Passive smoking
    5. Smoking pipe
13. Stress (biology) (Level 4)

1. Physical fitness (Level 4)
2. Body mass index (Level 4)
3. Exercise (Level 3)
   1. Aerobic exercise
   2. Anaerobic exercise
   3. Aerobics
   4. Calisthenics
      1. Pull-up
      2. Push-up
      3. Sit-up
   5. High-intensity interval training
   6. Pilates
   7. Strength training
   8. Stretching
   9. Yoga as exercise
4. Physical activity
5. Weight loss (Level 4)

1. Vitamin A
2. Vitamin C
3. Vitamin D
4. Vitamin E
5. Vitamin K
6. B vitamins
   1. Thiamine
   2. Riboflavin
   3. Vitamin B3
      1. Nicotinic acid
   4. Pantothenic acid
   5. Vitamin B6
      1. Pyridoxine
   6. Biotin
   7. Folate
   8. Vitamin B12

This section contains 13 articles.

1. Hygiene (Level 3)
   1. Anal hygiene
   2. Bathing (Level 4)
   3. Body odor
   4. Feminine hygiene (Level 4)
   5. Hair care
   6. Hand washing
   7. Oral hygiene (Level 4)
      1. Dental plaque
   8. Skin care
2. Grooming
3. Hair removal
   1. Shaving (Level 4)

This section contains 27 articles.

1. Comb
2. Dental floss
3. Deodorant
4. Facial tissue
5. Hairbrush
6. Hair conditioner
7. Hand sanitizer
8. Lip balm
9. Menstrual cup
10. Menstrual pad
11. Moisturizer
12. Mouthwash
13. Napkin
14. Safety razor
15. Shampoo
16. Shaving cream
17. Shower gel
18. Straight razor
19. Sunscreen
20. Tampon
21. Toilet paper
22. Toothbrush
23. Toothpaste
24. Toothpick
25. Towel
    1. Paper towel
26. Wet wipe