What are the first signs of head and neck cancer?

Head and neck cancer can affect the mouth, throat, voice box, nose, or nearby tissues. A sore that does not heal, a red or white patch, loose teeth without a clear cause, or pain when swallowing may need assessment. A lump in the neck can be a presentation of head and neck cancer, although many neck lumps have other causes. A change in voice or persistent one-sided ear pain can also warrant review. These symptoms may arise from infection, irritation, dental problems, or other conditions, so their presence does not establish cancer.

Arrange an appointment with a doctor, dentist, or ear, nose and throat specialist if a mouth, throat, neck, or voice change persists or keeps returning. Write down when it began, whether it is getting worse, and any tobacco, alcohol, dental, or HPV-related history that may help the clinician. Assessment may include an examination of the mouth and throat, feeling the neck, and tests chosen for the finding. If cancer is diagnosed, care may involve surgery, chemotherapy, or immunotherapy; nutrition support can help when eating or swallowing is difficult.

Seek urgent medical help for trouble breathing, inability to swallow fluids, rapidly increasing neck swelling, or bleeding that does not stop with gentle pressure. Contact a clinician soon for a persistent neck lump, worsening swallowing difficulty, coughing or spitting blood, or a voice change that does not settle. Early assessment can identify treatable causes and determine whether specialist tests are needed.

What could explain this change, and how long should it be monitored? Do I need a mouth, throat, neck, or voice-box examination? Which test would clarify the cause? Could dental care, HPV, tobacco, or reflux be relevant? If treatment is needed, how might it affect speech, swallowing, or nutrition?