A change in voice is an important symptom. It can be important to an individual because of the fact that the person requires their voice for their job or they are a professional voice user. It can also be important because this symptom can herald the early onset of a laryngeal cancer. There is however, a wide mix of diagnoses related to this symptom.
If a change in voice persists greater than 4 weeks than it does warrant an ENT examination. An ENT surgeon will take a careful history and perform a thorough examination to elicit the cause of the change in voice See ENT Consultation.
It is important to bear in mind risk factors for cancer in the form of smoking and drinking and clearly patients with these and a change in voice should not delay in seeking a specialist opinion.