Conditions beginning with the letter "H"

  | H1N1 Flu Virus (H1N1 Influenza, Influenza A (H1N1), Human Swine Flu, Swine Flu) |
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  | H1N1 Influenza (H1N1 Flu Virus, Influenza A (H1N1), Human Swine Flu, Swine Flu) |
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  | Hair Loss (Alopecia, Baldness) |
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  | Halitosis |
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  | Hand, Foot, and Mouth Disease (HFMD, Coxsackie Virus, Enterovirus) |
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  | Hard Stools (Constipation, Difficulty Passing Stool) |
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  | HAV and HBV (Hepatitis A and B, Viral Hepatitis (Hepatitis A and B), Hep B, Hep A) |
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  | Hay Fever (Allergic Rhinitis, Allergies, Pollinosis) |
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  | Head Lice (Lice, Pediculosis) |
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  | Headaches (Tension Headache, Sinus Headache, Migraine, Cluster Headache) |
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  | Heart Artery Dilation (Angioplasty, PCTA, PCI, Balloon Angioplasty) |
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  | Heart Attack (Myocardial Infarction, MI) |
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  | Heart Disease (Coronary Artery Disease, CAD) |
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  | Heart Infection (Endocarditis, Infective Endocarditis) |
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  | Heart Murmur (Mitral Valve Prolapse, MVP) |
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  | Heartburn (Gastroesophageal Reflux Disease, GERD) |
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  | Heat Exhaustion (Heat Stroke, Sunstroke, Thermic Fever, Siriasis) |
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  | Heat Stroke (Sunstroke, Heat Exhaustion, Thermic Fever, Siriasis) |
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  | Heel Spur (Plantar Fasciitis, Heel Spur Syndrome) |
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  | Heel Spur Syndrome (Plantar Fasciitis, Heel Spur) |
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  | Hematogenous Osteomyelitis (Osteomyelitis, Bone Infection) |
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  | Hemochromatosis (Iron Overload, Hereditary Hemochromatosis) |
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  | Hemoglobin S Disease (Sickle Cell Anemia, Sickle Cell Disease) |
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  | Hemophilus influenzae (Childhood Vaccination, Polio, Vaccination, Diphtheria) |
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  | Hemorrhagic Stroke (Stroke, Cerebrovascular Accident, Ischemic Stroke) |
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  | Hemorrhoids (Piles, Rectal Swelling) |
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  | Hep A (Hepatitis A and B, Viral Hepatitis (Hepatitis A and B), Hep B, HAV and HBV) |
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  | Hep B (Hepatitis A and B, Viral Hepatitis (Hepatitis A and B), Hep A, HAV and HBV) |
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  | Hep C (Hepatitis C) |
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  | Hepatitis A and B (Viral Hepatitis (Hepatitis A and B), Hep B, Hep A, HAV and HBV) |
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  | Hepatitis C , Hep C |
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  | Hereditary Hemochromatosis (Hemochromatosis, Iron Overload) |
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  | Hernia |
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  | Herniated Disc (Slipped Disc, Prolapsed Disc, Ruptured Disc) |
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  | Herpes (Genital Herpes, HSV-1, HSV-2) |
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  | Herpes Zoster (Shingles, Varicella-Zoster) |
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  | HFMD (Hand, Foot, and Mouth Disease, Coxsackie Virus, Enterovirus) |
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  | High Altitude Sickness (Altitude Sickness, Mountain Sickness) |
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  | High Blood Pressure (Hypertension) |
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  | High Blood Sugar (Diabetes, Hyperglycemia) |
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  | High Cholesterol (Hyperlipidemia, Cholesterol) |
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  | High Temperature (Fever, Elevated Temperature) |
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  | High Thyroid (Hyperthyroidism, Overactive Thyroid, Thyroid Disorders) |
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  | HIV/AIDS (Human Immunodeficiency Virus, AIDS) |
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  | Hives (Urticarial Rash) |
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  | Hodgkin's Disease |
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  | Hordeolum (Styes) |
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  | HPV Infection (Human Papillomavirus Infection) |
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  | HSV-1 (Genital Herpes, Herpes, HSV-2) |
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  | HSV-2 (Genital Herpes, Herpes, HSV-1) |
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  | Human Immunodeficiency Virus (HIV/AIDS, AIDS) |
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  | Human Papillomavirus Infection (HPV Infection) |
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  | Human Parvovirus B19 (Fifth Disease, Erythema Infectiosum, Slapped-cheek Disease) |
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  | Human Swine Flu (H1N1 Influenza, H1N1 Flu Virus, Influenza A (H1N1), Swine Flu) |
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  | Huntington's Chorea (Huntington's Disease) |
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  | Huntington's Disease (Huntington's Chorea) |
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  | Hyperglycemia (Diabetes, High Blood Sugar) |
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  | Hyperhidrosis (Excessive Sweating) |
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  | Hyperlipidemia (High Cholesterol, Cholesterol) |
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  | Hyperopia (Farsightedness, Presbyopia) |
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  | Hypertension (High Blood Pressure) |
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  | Hyperthyroidism (High Thyroid, Overactive Thyroid, Thyroid Disorders) |
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  | Hyperuricemia (Gout, Gouty Arthritis, Podagra) |
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  | Hypocortisolism (Addison's Disease, Adrenal Insufficiency, Primary Adrenal Insufficiency) |
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  | Hypoglycemia (Low Blood Sugar, Low Blood Glucose) |
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  | Hypoplastic Anemia (Aplastic Anemia, Aregenerative Anemia, Panmyelopathy, Toxic Paralytic Anemia) |
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  | Hypothermia and Frostbite |
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  | Hypothyroidism (Thyroid Problems, Low Thyroid, Underactive Thyroid) |
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