Curious about a health topic? From Achilles tendon to Wilson's disease and everything in between, we provide information on a variety of topics that concern us all.

• H. pylori infection
• Hair loss
• Hairy cell leukemia
• Hammertoe and mallet toe
• Hamstring injury
• Hand-foot-and-mouth disease
• Hangovers
• Hantavirus pulmonary syndrome
• Hashimoto's disease
• Hay fever
• Head lice
• Headaches in children
• Headaches in children
• Hearing loss
• Heart arrhythmia
• Heart attack
• Heart disease
• Heart failure
• Heart murmurs
• Heart palpitations
• Heartburn
• Heat exhaustion
• Heat rash
• Heatstroke
• Hemangioma
• Hemangioma
• Hemochromatosis
• Hemolytic uremic syndrome (HUS)
• Hemolytic uremic syndrome (HUS) [20166982]
• Hemophilia
• Hemorrhoids [20166950]
• Henoch-Schonlein purpura
• Hepatitis A
• Hepatitis B
• Hepatitis C
• Hepatitis C [20198831]
• Hepatocellular carcinoma
• Hereditary hemorrhagic telangiectasia
• Herniated disk
• Hiatal hernia
• Hiccups
• Hidradenitis suppurativa
• Hidradenitis suppurativa [20166972]
• High blood pressure (hypertension)
• High blood pressure in children
• High cholesterol
• Hilar cholangiocarcinoma
• Hip dysplasia
• Hip fracture
• Hip labral tear
• Hirschsprung's disease
• Hirschsprung's disease
• Hirsutism
• Histoplasmosis
• HIV/AIDS
• Hives and angioedema
• Hoarding disorder
• Hodgkin's lymphoma
• Horner syndrome
• Hot flashes
• HPV infection
• HPV infection [20163998]
• Hunter syndrome
• Huntington's disease
• Hurthle cell cancer
• Hydrocele
• Hydrocephalus
• Hypercalcemia
• Hyperglycemia in diabetes
• Hyperhidrosis
• Hyperoxaluria and oxalosis
• Hyperparathyroidism
• Hyperthyroidism (overactive thyroid)
• Hypertrophic cardiomyopathy
• Hypoglycemia
• Hyponatremia
• Hypoparathyroidism
• Hypopituitarism
• Hypopituitarism [20164003]
• Hypoplastic left heart syndrome
• Hypospadias
• Hypothermia
• Hypothyroidism (underactive thyroid)