This is a list of diseases starting with the letter "H".

Ha

Hag–Ham Hageman factor deficiency Hagemoser–Weinstein–Bresnick syndrome Hailey–Hailey disease Hair defect with photosensitivity and mental retardation Hairy cell leukemia Hairy ears, y-linked Hairy ears Hairy nose tip Hairy palms and soles Hairy tongue Hajdu–Cheney syndrome Halal–Setton–Wang syndrome Halal syndrome Hall–Riggs mental retardation syndrome Hallermann–Streiff syndrome Hallervorden–Spatz disease (renamed to Pantothenate kinase-associated neurodegeneration due to Hallervorden's Nazi party associations) Hallucinogen persisting perception disorder Hallux valgus Hamanishi–Ueba–Tsuji syndrome Hamano–Tsukamoto syndrome Hamartoma sebaceus of Jadassohn

Han–Hay Hantavirus Hantavirus pulmonary syndrome Hand and foot deformity flat facies Hand–foot–uterus syndrome Hand wringing Rett syndrome Hand, foot and mouth disease Hand–Schüller–Christian disease Hanhart syndrome Harding ataxia Harlequin type ichthyosis (Also Known As Harlequin Ichthyosis) Harpaxophobia Harrod–Doman–Keele syndrome Hartnup disease Hartsfield–Bixler–Demyer syndrome Hashimoto struma Hashimoto–Pritzker syndrome Hashimoto's thyroiditis Haspeslagh–Fryns–Muelenaere syndrome Hay–Wells syndrome recessive type Hay–Wells syndrome

He

Hea–Hei Headache, cluster Hearing disorder Hearing impairment Hearing loss Heart aneurysm Heart attack Heart block progressive, familial Heart block Heart defect round face congenital retarded development Heart defect tongue hamartoma polysyndactyly Heart defects limb shortening Heart hand syndrome Spanish type Heart hypertrophy, hereditary Heart situs anomaly Heart tumor of the adult Heart tumor of the child Heavy metal poisoning HEC syndrome Hecht–Scott syndrome Heckenlively syndrome Heide syndrome

Hel Heliophobia HELLP syndrome Helmerhorst–Heaton–Crossen syndrome Helminthiasis

Hem HEM dysplasia

Hema–Hemi Hemangioblastoma Hemangioendothelioma Hemangioma thrombocytopenia syndrome Hemangioma, capillary infantile Hemangioma Hemangiomatosis, familial pulmonary capillary Hemangiopericytoma Hematocolpos Hemeralopia, congenital essential Hemeralopia, familial Hemi 3 syndrome Hemifacial atrophy agenesis of the caudate nucleus Hemifacial atrophy progressive Hemifacial hyperplasia strabismus Hemifacial microsomia Hemihypertrophy in context of NF Hemihypertrophy intestinal web corneal opacity Hemimegalencephaly Hemiplegia Hemiplegic migraine, familial

Hemo Hemochromatosis Hemochromatosis type 1 Hemochromatosis type 2 Hemochromatosis type 3 Hemochromatosis type 4 Hemoglobin C disease Hemoglobin E disease Hemoglobin SC disease Hemoglobinopathy Hemoglobinuria Hemolytic anemia lethal genital anomalies Hemolytic-uremic syndrome Hemophagocytic lymphohistiocytosis Hemophagocytic reticulosis Hemophilia A Hemophilia B Hemophilic arthropathy Hemophobia Hemorrhagic fever with renal syndrome Hemorrhoid Hemorrhagic proctocolitis Hemorrhagic thrombocythemia Hemorrhagiparous thrombocytic dystrophy Hemosiderosis Hemothorax

Hen Hennekam–Beemer syndrome Hennekam–Koss–de Geest syndrome Hennekam syndrome Hennekam–Van der Horst syndrome Henoch–Schönlein purpura

Hep Hepadnovirus D Heparane sulfamidase deficiency Heparin-induced thrombopenia Hepatic cystic hamartoma Hepatic ductular hypoplasia Hepatic encephalopathy Hepatic fibrosis renal cysts mental retardation Hepatic fibrosis Hepatic venoocclusive disease Hepatic veno-occlusive disease Hepatitis Hepatitis A Hepatitis B Hepatitis C Hepatitis D Hepatitis E Hepatoblastoma Hepatocellular carcinoma Hepatorenal syndrome Hepatorenal tyrosinemia

Her Herpes

Here

Hered

Heredi Hereditary a – Hereditary m Hereditary amyloidosis Hereditary angioedema Hereditary ataxia Hereditary breast–ovarian cancer syndrome Hereditary carnitine deficiency myopathy Hereditary carnitine deficiency syndrome Hereditary carnitine deficiency Hereditary ceroid lipofuscinosis Hereditary coproporphyria Hereditary deafness Hereditary elliptocytosis Hereditary fibrinogen Aα-Chain amyloidosis Hereditary fructose intolerance Hereditary hearing disorder Hereditary hearing loss Hereditary hemochromatosis Hereditary hemorrhagic telangiectasia Hereditary hyperuricemia Hereditary macrothrombocytopenia Hereditary methemoglobinemia, recessive Hereditary myopathy with intranuclear filamentous Hereditary n – Hereditary t Hereditary nodular heterotopia Hereditary non-spherocytic hemolytic anemia Hereditary pancreatitis Hereditary paroxysmal cerebral ataxia Hereditary peripheral nervous disorder Hereditary primary Fanconi disease Hereditary resistance to anti-vitamin K Hereditary sensory and autonomic neuropathy 3 Hereditary sensory and autonomic neuropathy 4 Hereditary sensory neuropathy type I Hereditary sensory neuropathy type II Hereditary spastic paraplegia Hereditary spherocytic hemolytic anemia Hereditary spherocytosis Hereditary type 1 neuropathy Hereditary type 2 neuropathy

Herm–Hers Hermansky–Pudlak syndrome Hermaphroditism Hernandez–Aguire–Negrete syndrome Herpangina Herpes encephalitis Herpes simplex disease Herpes simplex encephalitis Herpes viridae disease Herpes virus antenatal infection Herpes zoster oticus Herpes zoster Herpesvirus simiae B virus Herpetic embryopathy Herpetic keratitis Herpetophobia Herrmann–Opitz arthrogryposis syndrome Herrmann–Opitz craniosynostosis Hers' disease Hersh–Podruch–Weisskopk syndrome

Het–Hex Heterophobia Heterotaxia (generic term) Heterotaxia autosomal dominant type Heterotaxy with polysplenia or asplenia Heterotaxy, visceral, X-linked Hexosaminidases A and B deficiency

Hh HHH syndrome

Hi

Hib–Hip Hibernian fever, familial Hiccups Hidradenitis suppurativa familial Hidradenitis suppurativa Hidrotic ectodermal dysplasia type Christianson Fouris High scapula High-molecular-weight kininogen deficiency, congenital Hillig syndrome Hing–Torack–Dowston syndrome Hinson–Pepys disease Hip dislocation Hip dysplasia Beukes type Hip dysplasia (canine) Hip dysplasia (human) Hip luxation Hip subluxation Hipo syndrome

Hir–Hiv Hirschsprung disease Hirschsprung disease ganglioneuroblastoma Hirschsprung disease polydactyly heart disease Hirschsprung disease type 2 Hirschsprung disease type 3 Hirschsprung disease type d brachydactyly Hirschsprung microcephaly cleft palate Hirschsprung nail hypoplasia dysmorphism Hirsutism congenital gingival hyperplasia Hirsutism skeletal dysplasia mental retardation His bundle tachycardia Histadelia Histapenia Histidinemia Histidinuria renal tubular defect syndrome Histiocytosis X Histiocytosis, Non-Langerhans-Cell Histoplasmosis Histrionic personality disorder Hittner–Hirsch–Kreh syndrome HIV

Hm Hm syndrome HMG-CoA lyase deficiency HMG CoA synthetase deficiency

Ho

Hod–Hol Hodgkin lymphoma Hodgkin's disease Hoepffner–Dreyer–Reimers syndrome Hollow visceral myopathy Holmes–Benacerraf syndrome Holmes–Borden syndrome Holmes–Collins syndrome Holmes–Gang syndrome Holoacardius amorphus Holocarboxylase synthetase deficiency Holoprosencephaly caudal dysgenesis Holoprosencephaly deletion 2p Holoprosencephaly ectrodactyly cleft lip palate Holoprosencephaly radial heart renal anomalies Holoprosencephaly Holt–Oram syndrome Holzgreve–Wagner–Rehder syndrome

Hom–Hoy Homocarnosinase deficiency Homocarnosinosis Homocystinuria due to cystathionine beta-synthase Homocystinuria due to defect in methylation (cbl g) Homocystinuria due to defect in methylation cbl e Homocystinuria due to defect in methylation, MTHFR deficiency Homocystinuria Homologous wasting disease Homozygous hypobetalipoproteinemia Hoon–Hall syndrome Hordnes–Engebretsen–Knudtson syndrome Horn–Kolb syndrome Horner's syndrome Hornova–Dlurosova syndrome Horseshoe kidney Horton disease, juvenile Horton disease Hot tub folliculitis Houlston–Ironton–Temple syndrome Howard–Young syndrome Howel–Evans syndrome Hoyeraal–Hreidarsson syndrome Hoyeraal syndrome

Hs HSV-2 infection

Hu Human ewingii ehrlichiosis Human granulocytic ehrlichiosis Human monocytic ehrlichiosis Human parvovirus B19 infection Humero spinal dysostosis congenital heart disease Humeroradial synostosis Humeroradioulnar synostosis Humerus trochlea aplasia of Hunter–Carpenter–Mcdonald syndrome Hunter–Jurenka–Thompson syndrome Hunter–Macpherson syndrome Hunter–Mcalpine syndrome Hunter–Mcdonald syndrome Hunter–Rudd–Hoffmann syndrome Hunter syndrome Huntington's disease Huriez scleroatrophic syndrome Hurler syndrome Hurst–Hallam–Hockey syndrome Hutchinson–Gilford–Progeria syndrome Hutchinson incisors Hutteroth–Spranger syndrome

Hy

Hya Hyalinosis systemic short stature Hyaloideoretinal degeneration of wagner

Hyd

Hyda–Hyde Hydantoin antenatal infection Hydatidiform mole Hydatidosis Hyde–Forster–Mccarthy–Berry syndrome

Hydr Hydranencephaly Hydrocephalus - Arnold Chiari - allied disorders Hydrocephalus autosomal recessive Hydrocephalus costovertebral dysplasia Sprengel anomaly Hydrocephalus craniosynostosis bifid nose Hydrocephalus endocardial fibroelastosis cataract Hydrocephalus growth retardation skeletal anomalies Hydrocephalus obesity hypogonadism Hydrocephalus skeletal anomalies Hydrocephalus Hydrocephaly corpus callosum agenesis diaphragmatic hernia Hydrocephaly low insertion umbilicus Hydrocephaly tall stature joint laxity Hydrolethalus syndrome Hydronephrosis Hydronephrosis peculiar facial expression Hydrophobia Hydrops ectrodactyly syndactyly Hydrops fetalis anemia immune disorder absent thumb Hydrops fetalis Hydroxycarboxylic aciduria Hydroxymethylglutaric aciduria

Hyg-Hym Hygroma cervical Hymenolepiasis

Hyp

Hyper

Hyper IgE Hyper IgM syndrome

Hypera–Hyperb Hyperadrenalism Hyperaldosteronism familial type 2 Hyperaldosteronism, familial type 1 Hyperaldosteronism Hyperammonemia Hyperandrogenism Hyperbilirubinemia transient familial neonatal Hyperbilirubinemia type 1 Hyperbilirubinemia type 2 Hyperbilirubinemia

Hyperc–Hyperg Hypercalcemia, familial benign type 1 Hypercalcemia, familial benign type 2 Hypercalcemia, familial benign type 3 Hypercalcemia, familial benign Hypercalcemia Hypercalcinuria idiopathic Hypercalcinuria macular coloboma Hypercalcinuria Hypercementosis Hypercholesterolemia due to arg3500 mutation of Apo B-100 Hypercholesterolemia due to LDL receptor deficiency Hypercholesterolemia Hyperchylomicronemia Hyperekplexia Hypereosinophilic syndrome Hyperferritinemia, hereditary, with congenital cataracts Hypergeusia Hyperglycemia Hyperglycerolemia Hyperglycinemia, isolated nonketotic type 1 Hyperglycinemia, isolated nonketotic type 2 Hyperglycinemia, isolated nonketotic Hyperglycinemia, ketotic Hyperglycinemia, non-ketotic Hypergonadotropic ovarian failure, familial or sporadic

Hyperh–Hyperk Hyperhidrosis Hyperhomocysteinemia Hyper-IgD syndrome Hyperimidodipeptiduria Hyperimmunoglobinemia D with recurrent fever Hyperimmunoglobulin E - recurrent infection syndrome Hyperimmunoglobulinemia D with periodic fever Hyperimmunoglobulinemia E Hyperinsulinism due to focal adenomatous hyperplasia Hyperinsulinism due to glucokinase deficiency Hyperinsulinism due to glutamodehydrogenase deficiency Hyperinsulinism in children, congenital Hyperinsulinism, diffuse Hyperinsulinism, focal Hyperkalemia Hyperkalemic periodic paralysis Hyperkeratosis lenticularis perstans of Flegel Hyperkeratosis lenticularis perstans Hyperkeratosis palmoplantar localized acanthokeratolytic Hyperkeratosis palmoplantar localized epidermolytic Hyperkeratosis palmoplantar with palmar crease hyperkeratosis

Hyperl–Hypero Hyperlipoproteinemia type I Hyperlipoproteinemia type II Hyperlipoproteinemia type III Hyperlipoproteinemia type IV Hyperlipoproteinemia type V Hyperlipoproteinemia