You usually start by seeing your GP or dentist. If they think that cancer could be causing your symptoms, or if they are not sure what the problem is, they will refer you to a specialist doctor. You will see the specialist at the hospital for advice, tests and treatment. You are likely to see an oral and maxillofacial surgeon or an ear, nose and throat (ENT) specialist surgeon.
If your only symptom is a lump in your neck, you may be referred to a hospital that has a neck lump clinic.