“Explore our comprehensive A-Z guide on diseases and conditions. Discover detailed information on definitions, symptoms, causes, and treatments to better understand various health issues.”
- H. Pylori Infection
- HACE (High-Altitude Cerebral Edema)
- Haemophilus Influenzae
- Haglund’s Deformity
- Hair Loss
- Hair Loss in Women
- Hair Tourniquet
- Hairy Cell Leukemia
- Hairy Ear
- Hallux Limitus
- Hallux Rigidus
- Hamartoma
- Hammertoes
- Hamstring Injury
- Hamstring Tendonitis
- Hand-Foot Syndrome
- Hand, Foot and Mouth Disease
- Hangover
- Hantavirus Pulmonary Syndrome
- Haphephobia
- Hard Palate Cancer
- Harlequin Ichthyosis
- Harlequin Syndrome
- Hashimoto’s Disease
- Head and Neck Cancer
- Head Banging and Body Rocking
- Head Injury
- Head Lice
- Headaches
- Headaches in Children
- Hearing Loss
- Heart Attack
- Heart Block
- Heart Cancer
- Heart Disease
- Heart Disease & Pregnancy
- Heart Infection
- Heart Inflammation
- Heart Murmur
- Heart Palpitations
- Heart Palpitations After Eating
- Heart Palpitations and Anxiety
- Heart Palpitations at Night
- Heart Palpitations in Pregnancy
- Heart Transplant Rejection
- Heart Valve Disease
- Heartburn
- Heartburn During Pregnancy
- Heartland Virus Disease
- Heat Cramps
- Heat Exhaustion
- Heat Rash
- Heat Stroke
- Heat-Related Illness (Hyperthermia)
- Heavy Metal Poisoning (Toxicity)
- Heel Bursitis
- Heel Fat Pad Syndrome
- Heel Spurs
- HELLP Syndrome
- Hemangioblastoma
- Hemangioma
- Hemarthrosis
- Hematuria
- Hemicrania Continua
- Hemifacial Microsomia
- Hemifacial Spasm
- Hemihyperplasia
- Hemimegalencephaly
- Hemiplegic Migraine
- Hemochromatosis
- Hemolysis
- Hemolytic Anemia
- Hemolytic Uremic Syndrome
- Hemoperitoneum
- Hemophagocytic Lymphohistiocytosis
- Hemophilia
- Hemophilia A
- Hemophilia B
- Hemophilia C
- Hemopneumothorax
- Hemorrhage
- Hemorrhagic Cystitis
- Hemorrhagic Stroke
- Hemorrhoids
- Hemorrhoids During Pregnancy
- Hemothorax
- Heparin-Induced Thrombocytopenia
- Hepatic Encephalopathy
- Hepatitis
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hepatoblastoma
- Hepatocellular Carcinoma (HCC)
- Hepatopulmonary Syndrome
- Hepatorenal Syndrome (HRS)
- HER2-Positive Breast Cancer
- Hereditary Diffuse Gastric Cancer (HDGC)
- Hereditary Multiple Osteochondromas
- Hereditary Nonpolyposis Colorectal Cancer (HNPCC)
- Hereditary Spastic Paraplegia
- Hereditary Spherocytosis
- Hernia
- Herniated Disk (Slipped or Bulging Disk)
- Herpangina
- Herpes Simplex 1 (Commonly Referred to as Oral Herpes)
- Herpes Simplex 2 (Commonly Referred to as Genital Herpes)
- Herpes Simplex Virus (HSV)
- Herpetic Whitlow
- Heterotaxy Syndrome
- Heterotopic Ossification
- Hiatal Hernia
- Hibernating Myocardium and Stunned Myocardium
- Hibernoma
- Hiccups
- Hidradenitis Suppurativa
- High Ankle Sprain
- High Arch Feet
- High Blood Pressure (Hypertension)
- High Blood Pressure (Hypertension) During Pregnancy
- High Blood Pressure in Children
- High Cholesterol in Children
- High Estrogen
- High White Blood Cell Count
- High-Altitude Pulmonary Edema (HAPE)
- High-Grade Glioma
- High-Output Heart Failure
- High-Risk Pregnancy
- Hill-Sachs Lesion
- Hip (Femoroacetabular) Impingement
- Hip Arthritis
- Hip Dislocation
- Hip Dysplasia
- Hip Flexor Strain
- Hip Fracture (Broken Hip)
- Hip Labral Tear
- Hirschsprung’s Disease
- Hirsutism
- Histamine Intolerance
- Histiocytoma
- Histiocytosis
- Histoplasmosis
- Histrionic Personality Disorder
- Hitchhiker’s Thumb
- HIV & AIDS
- Hives
- Hoarding Disorder
- Hoarseness
- Hodgkin Lymphoma
- Hollenhorst Plaques
- Holoprosencephaly (HPE)
- Holt-Oram Syndrome
- Homocystinuria
- Hookworm Disease
- Hormonal Acne
- Hormonal Imbalance
- Horner Syndrome
- Horsefly Bite
- Horseshoe Kidney
- Hot Tub Folliculitis
- HTLV-1
- Human Bites
- Human Metapneumovirus (HMPV)
- Human Papillomavirus (HPV)
- Human Parechovirus (PeV)
- Humerus Fracture
- Hunger Headache
- Hungry Bone Syndrome
- Hunter Syndrome
- Huntington’s Disease
- Hurler Syndrome
- Hurthle Cell Carcinoma
- Hydatid Disease
- Hydranencephaly
- Hydrocele
- Hydrocephalus
- Hydromyelia
- Hydronephrosis
- Hydrosalpinx
- Hymenal Polyps
- Hymenal Tag
- Hyperacusis
- Hyperaldosteronism
- Hyperammonemia
- Hyperandrogenism
- Hypercalcemia
- Hypercapnia
- Hypercholesterolemia
- Hyperdontia
- Hyperekplexia
- Hyperemesis Gravidarum
- Hypereosinophilic Syndrome
- Hyperextended Knee
- Hypergastrinemia
- Hyperglycemia (High Blood Sugar)
- Hyperhidrosis
- Hyperinflated Lungs
- Hyperinsulinemia
- Hyperkalemia (High Potassium)
- Hyperkeratosis
- Hyperlactation Syndrome
- Hyperlipidemia
- Hypermetabolism
- Hyperopia (Farsightedness)
- Hyperosmolar Hyperglycemic State (HHS)
- Hyperoxaluria
- Hyperparathyroidism
- Hyperphosphatemia
- Hyperpigmentation
- Hyperpituitarism
- Hyperprolactinemia
- Hypersensitivity Pneumonitis
- Hypersomnia
- Hypersplenism
- Hypertensive Crisis
- Hypertensive Encephalopathy
- Hypertensive Heart Disease
- Hypertensive Retinopathy
- Hyperthyroidism
- Hypertonia in Babies
- Hypertonic Pelvic Floor
- Hypertriglyceridemia
- Hypertrophic Cardiomyopathy
- Hypertrophic Osteoarthropathy
- Hypertrophic Scar
- Hypertropia
- Hyperuricemia
- Hyperventilation
- Hyperventilation Syndrome
- Hyperviscosity Syndrome
- Hypervolemia
- Hyphema
- Hypnic Headache
- Hypoalbuminemia
- Hypocalcemia
- Hypochlorhydria
- Hypochondroplasia
- Hypodontia
- Hypogammaglobulinemia
- Hypogeusia
- Hypoglycemia
- Hypokalemia
- Hypomagnesemia
- Hypomania
- Hyponatremia
- Hypoparathyroidism
- Hypopharyngeal Cancer
- Hypophosphatemia
- Hypopituitarism
- Hypoplastic Aortic Arch
- Hypoplastic Left Heart Syndrome (HLHS)
- Hypoplastic Right Heart Syndrome
- Hyposmia
- Hypospadias
- Hypothalamic Amenorrhea
- Hypothalamic Hamartoma
- Hypothalamic Obesity
- Hypothermia
- Hypothyroidism
- Hypotonia in Babies
- Hypovolemia
- Hypovolemic Shock
- Hypoxemia
- Hypoxia
- Hypoxic-Ischemic Encephalopathy (HIE)