Haemophilus influenzae type b
Hand, foot and mouth disease
Health anxiety (hypochondria)
Hearing tests for children
Heart disease, congenital
Heat exhaustion and heatstroke
Hereditary haemorrhagic telangiectasia (HHT)
Hereditary motor and sensory neuropathy
Hereditary neuropathy with pressure palsies (HNPP)
Hereditary spastic paraplegia