Diseases and Conditions that Start with H - Mayo Clinic

H

H. pylori infection
See
Helicobacter pylori (H. pylori) infection

H0

Ha

Hair loss
Hair-pulling disorder
See
Trichotillomania (hair-pulling disorder)
Hairy cell leukemia
Hairy tongue
See
Black hairy tongue
Halitosis
See
Bad breath
Hammertoe and mallet toe
Hamstring injury
Hand fracture
See
Broken hand
Hand-foot-and-mouth disease
Hangovers
Hantavirus pulmonary syndrome
Hardening of the arteries
See
Arteriosclerosis / atherosclerosis
Hashimoto's disease
HAV infection
See
Hepatitis A
Hay fever

Hb

HBV infection
See
Hepatitis B

Hc

HCC
See
Hepatocellular carcinoma
HCV infection
See
Hepatitis C

He

Head and neck cancers
Head lice
Head trauma, coma
See
Coma
Headache, chronic daily
See
Chronic daily headaches
Headache, cluster
See
Cluster headache
Headache, exercise
See
Exercise headaches
Headache, migraine
See
Migraine
Headache, primary cough
See
Cough headaches
Headache, sex
See
Sex headaches
Headache, sinus
See
Sinus headaches
Headache, spinal
See
Spinal headaches
Headache, tension
See
Tension headache
Headache, thunderclap
See
Thunderclap headaches
Headaches in children
Health anxiety
See
Illness anxiety disorder
Hearing loss
Heart arrhythmia
Heart attack
Heart defects in adults
See
Congenital heart disease in adults
Heart disease
Heart failure
Heart murmurs
Heart palpitations
Heart valve disease
Heartburn
Heat exhaustion
Heat rash
Heatstroke
Heavy menstrual bleeding
Heel pain
See
Plantar fasciitis
Helicobacter pylori (H. pylori) infection
Hemangioma
Hemangioma, liver
See
Liver hemangioma
Hematoma, intracranial
See
Intracranial hematoma
Hematuria
See
Blood in urine (hematuria)
Hemifacial spasm
Hemochromatosis
Hemolytic uremic syndrome (HUS)
Hemophilia
Hemorrhoids
Henoch-Schonlein purpura
Hep A
See
Hepatitis A
Hep B
See
Hepatitis B
Hep C
See
Hepatitis C
Hepatitis A
Hepatitis A virus infection
See
Hepatitis A
Hepatitis B
Hepatitis B virus infection
See
Hepatitis B
Hepatitis C
Hepatitis C virus infection
See
Hepatitis C
Hepatitis, autoimmune
See
Autoimmune hepatitis
Hepatitis, toxic
See
Toxic hepatitis
Hepatocellular carcinoma
Hepatolenticular degeneration
See
Wilson's disease
Hepatomegaly
See
Enlarged liver
Hepatopulmonary syndrome
Hereditary hemochromatosis
See
Hemochromatosis
Hereditary hemorrhagic telangiectasia
Hereditary motor and sensory neuropathy
See
Charcot-Marie-Tooth disease
Hereditary nonpolyposis colorectal cancer syndrome
See
Lynch syndrome
Hernia, hiatal
See
Hiatal hernia
Hernia, inguinal
See
Inguinal hernia
Hernia, umbilical
See
Umbilical hernia
Herniated disk
Herpes zoster
See
Shingles
Herpes zoster oticus
See
Ramsay Hunt syndrome
Herpes, genital
See
Genital herpes

Hi

Hiatal hernia
Hiccups
Hidradenitis suppurativa
High blood pressure (hypertension)
High blood pressure in children
High blood pressure, secondary
See
Secondary hypertension
High cholesterol
High-flow priapism
See
Priapism
Hilar cholangiocarcinoma
Hip dysplasia
Hip fracture
Hip labral tear
Hirschsprung's disease
Hirsutism
Histoplasmosis
HIV/AIDS
Hives and angioedema
Hives, chronic
See
Chronic hives

Ho

Hoarding disorder
Hoarse voice
See
Laryngitis
Hodgkin lymphoma (Hodgkin disease)
Hodgkin's disease
See
Hodgkin lymphoma (Hodgkin disease)
Hordeolum
See
Stye (sty)
Horner syndrome
Horner-Bernard syndrome
See
Horner syndrome
Hot flashes

Hp

HPV infection

Hu

Human immunodeficiency virus
See
HIV/AIDS
Human papillomavirus infection
See
HPV infection
Hunchback
See
Kyphosis
Huntington's disease
Hunt's syndrome
See
Ramsay Hunt syndrome
Hurthle cell cancer
Hutchinson-Gilford progeria syndrome
See
Progeria

Hy

Hydrocele
Hydrocephalus
Hydronephrosis
Hypercalcemia
Hypercholesterolemia
See
High cholesterol
Hypercholesterolemia, familial
See
Familial hypercholesterolemia
Hypercortisolism
See
Cushing syndrome
Hypereosinophilic syndrome
Hyperglycemia in diabetes
Hyperhidrosis
Hypermenorrhea
See
Heavy menstrual bleeding
Hyperopia
See
Farsightedness
Hyperoxaluria and oxalosis
Hyperparathyroidism
Hypersexuality
See
Compulsive sexual behavior
Hypertension
See
High blood pressure (hypertension)
Hypertension, pregnancy-related
See
Preeclampsia
Hypertension, pulmonary
See
Pulmonary hypertension
Hyperthyroidism (overactive thyroid)
Hypertrophic cardiomyopathy
Hypoactive sexual desire disorder
See
Low sex drive in women
Hypochondria
See
Illness anxiety disorder
Hypoglycemia
Hypoglycemia, diabetic
See
Diabetic hypoglycemia
Hypohydration
See
Dehydration
Hyponatremia
Hypoparathyroidism
Hypopituitarism
Hypoplastic left heart syndrome
Hypospadias
Hypotension
See
Low blood pressure (hypotension)
Hypothermia
Hypothyroidism (underactive thyroid)

Mayo Clinic does not endorse companies or products. Advertising revenue supports our non-profit mission.

Advertising & Sponsorship

Join the fight against cancer!

Make a gift to our 2025 Drive to Cure Cancer and transform the way cancer is treated and defeated.