Browse our published health condition guides alphabetically. Select a letter, then choose a topic to read about symptoms, assessment and care. For urgent or severe symptoms, seek professional help promptly.
A B C D E F G H I K L M N O P R S T U V W
A
- Acne
- Acute Bronchitis
- Acute Cholecystitis
- Acute Otitis Media
- ADHD in Children and Adults
- Alcohol Use Disorder
- Allergic Contact Dermatitis
- Allergies
- Alpha-1 Antitrypsin Deficiency
- Anaphylaxis
- Anemia
- Angina
- Anorexia Nervosa
- Anxiety Disorders
- Appendicitis
- Arrhythmia
- Arthritis
- Asthma
- Atherosclerosis
- Athlete’s Foot
- Atopic Dermatitis (Eczema)
- Atrial Fibrillation
- Autism
B
- Bacterial Vaginosis
- Benign Prostatic Hyperplasia (BPH)
- Bipolar Disorder
- Bladder Stones
- Body Dysmorphic Disorder
- Borderline Personality Disorder
- BPPV
- Breast Cancer
- Bronchiectasis
- Bulimia Nervosa
C
- Cat Allergy
- Cataracts
- Celiac Disease
- Cerebral Palsy
- Chickenpox
- Chlamydia
- Chlamydia Pneumoniae Infection
- Cold Sores
- Cold Urticaria
- Cold-Induced Asthma
- Common Cold
- Compulsive Buying
- Compulsive Sexual Behavior
- Congenital Heart Disease
- Contact Dermatitis
- COPD
- Coronary Artery Disease
- COVID-19
- Cow’s Milk Protein Allergy
- Crohn’s Disease
- Croup in Children
- Cystic Fibrosis
D
- Deep Vein Thrombosis
- Dementia
- Depression
- Discoid Eczema
- Diverticulosis and Diverticulitis
- Dog Allergy
- Drug Addiction
- Dyshidrotic Eczema
E
- Earwax Blockage
- Eczema
- Emphysema
- Encephalitis
- Endocarditis
- Endometriosis
- Epilepsy
- Erysipelas
- Exercise-Induced Bronchoconstriction
- Eye Inflammation
F
G
- Gallstones
- Gambling Disorder
- Gaming Disorder
- Gangrene
- Gastritis
- Generalized Anxiety Disorder
- Genital Herpes
- Genital Warts
- Geographic Tongue
- Glandular Fever
- Glaucoma
- Gonorrhea
- Gout
- Grass Pollen Allergy
- Gum Disease
H
- Hand Eczema
- Hand, Foot and Mouth Disease
- Head Lice
- Health Anxiety
- Hearing Loss
- Heart Attack
- Heart Failure
- Heart Valve Disease
- Heartburn and Acid Reflux (GERD)
- Hemorrhoids
- Hepatitis B
- Hepatitis C
- Herniated Disc
- Hidradenitis Suppurativa
- High Blood Pressure
- HIV and AIDS
- Hives (Urticaria)
- House Dust Mite Allergy
- HPV
- Hypothyroidism
I
- Impetigo
- Infant Colic
- Influenza (Flu)
- Ingrown Toenail
- Insomnia and Sleep Problems
- Intestinal Infection
- Iron Deficiency
- Irritable Bowel Syndrome (IBS)
K
L
M
- ME/CFS
- Measles
- Meningitis
- Menopause
- Migraine
- Mold Allergy
- Molluscum Contagiosum
- Multiple Sclerosis (MS)
- Mumps
- Mycoplasma
- Mycoplasma Genitalium
- Mycoplasma Pneumoniae
N
- Nail Fungus
- Narcolepsy
- Nasal Polyps
- Nickel Allergy
- Nicotine Addiction
- Nonallergic Rhinitis and Odor Sensitivity
- Norovirus
- Nut Allergy
O
- Obsessive-Compulsive Disorder (OCD)
- Oral Lichen Planus
- Oral Thrush
- Osteoporosis
- Outer Ear Infection
- Overactive Bladder
P
- Panic Disorder
- Parkinson’s Disease
- Pelvic Inflammatory Disease
- Peptic Ulcer
- Perioral Dermatitis
- Peripheral Artery Disease
- Peripheral Neuropathy
- Peritonsillar Abscess
- Pet Allergy
- Pinworm Infection
- Pleurisy
- PMS and PMDD
- Pneumonia
- Pollen Allergy
- Pollen Food Syndrome
- Polycystic Ovary Syndrome (PCOS)
- Polymorphic Light Eruption
- Post-Traumatic Stress Disorder (PTSD)
- Postpartum Depression
- Psoriasis
- Psychosis
- Pubic Lice
- Pulmonary Embolism
- Puumala Hantavirus Infection
R
S
- Sarcoidosis
- Scabies
- Scarlet Fever
- Schizophrenia
- Sciatica
- Seborrheic Keratoses
- Shingles
- Sinusitis
- Sleep Apnea
- Social Anxiety Disorder
- Specific Phobias
- Spina Bifida
- Stroke
- Syphilis
T
- Takotsubo Cardiomyopathy
- Thalassemia
- TIA
- Tick Bites
- Tick-Borne Encephalitis (TBE)
- Tinnitus
- Tonsillitis
- Tooth Decay
- Tuberculosis (TB)
- Type 2 Diabetes