Itch is a common symptom of many dermatological conditions (e.g. eczema, urticaria and lichen planus) but can also be a manifestation of underlying systemic, neurological and psychological disorders, or an adverse reaction to medication. The assessment of patients with generalised itch but no rash requires a detailed history and examination to narrow the spectrum of potential causes. Examination should include inspection of the entire skin. Physical examination should include palpation for lymphadenopathy and organomegaly.