Haemangioma

Haematuria

Haemochromatosis

Haemophilia

Haemophilus influenzae type b

Haemorrhage, brain

Haemorrhoids (piles)

Hair dye reactions

Hair loss (alopecia)

Hairs, ingrown

Hairy body or face

Hairy cell leukaemia

Halitosis (bad breath)

Hallucinations

Hallux valgus

Hammer finger

Hamstring injury

Hand pain

Hand tendon, repair

Hand, foot and mouth disease

Hashimoto's thyroiditis

Having an operation

Hay fever

Head and neck cancer

Head injury, minor

Head injury, severe

Head lice

Headaches

Health anxiety (hypochondria)

Hearing aids

Hearing tests

Hearing tests for children

Heart attack

Heart block

Heart bypass

Heart disease, congenital

Heart failure

Heart palpitations

Heart transplant

Heart-lung transplant

Heartburn

Heat exhaustion and heatstroke

Heat rash

Heavy periods

Heel pain

Henoch-Schönlein purpura

Hepatitis

Hepatitis A

Hepatitis B

Hepatitis C

Herbal medicines

Herceptin

Hereditary haemorrhagic telangiectasia (HHT)

Hereditary motor and sensory neuropathy

Hereditary neuropathy with pressure palsies (HNPP)

Hereditary spastic paraplegia

Hernia

Hernia, femoral

Hernia, hiatus

Hernia, inguinal

Hernia, umbilical

Herpes in a newborn baby (neonatal herpes)

Herpes simplex eye infections

Herpes simplex virus

Herpes zoster virus

Herpes, genital

Herpetic whitlow

Hiccups

Hidradenitis suppurativa

High blood pressure

High blood sugar (hyperglycaemia)

High cholesterol

Hip dysplasia (children)

Hip fracture

Hip pain in adults

Hip pain in children

Hip replacement

Hirschsprung's disease

HIV and AIDS

Hives

Hoarding disorder

Hodgkin lymphoma

Home oxygen therapy

Homeopathy

Homocystinuria

Hookworm infection

Hormone replacement therapy (HRT)

Hornet stings

Housemaid's knee

Hughes syndrome

Hunchback

Huntington's disease

Hyaline membrane disease

Hydatidiform mole

Hydrocephalus

Hydronephrosis

Hydrophobia

Hymenolepis

Hyperacusis

Hyperhidrosis (excessive sweating)

Hyperkinetic disorder

Hypermetropia

Hypermobility

Hyperparathyroidism

Hypersomnia, unexplained

Hyperthyroidism

Hypnotherapy

Hypoglycaemia

Hypogonadism (testosterone deficiency)

Hypopigmentation

Hypotension

Hypothermia

Hypothyroidism

Hypotonia

Hysterectomy

Hysteroscopy