The short answer
Head and neck cancer symptoms can include a lump in the neck, a mouth or throat sore that will not heal, trouble swallowing, or a hoarse voice. Sudden trouble breathing or swallowing needs care right away.
Common symptoms include a neck lump, a non-healing mouth or throat sore, and a sore throat that does not go away.
A change in voice or hoarseness can be a sign.
Trouble swallowing should be checked by a doctor or dentist.
Sudden difficulty breathing or severe trouble swallowing is an emergency.
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Call for emergency help or go to an emergency room right away if you or someone you are with suddenly cannot breathe well, feels like their airway is closing, or cannot swallow their own saliva. These are emergencies. Do not wait to schedule an appointment.
The simple version
Head and neck cancer symptoms depend on where the cancer starts, whether the mouth, throat, voice box, sinuses, or salivary glands. Some symptoms are easy to notice, like a lump. Others, like a sore throat, are easy to mistake for something minor.
Common symptoms
- A lump in the neck. NCI lists this as a key symptom.
- A mouth or throat sore that does not heal. NCI describes a sore that does not heal and may be painful.
- A sore throat that does not go away. A sore throat that does not go away needs a check.
- Trouble or pain when swallowing. Difficulty swallowing food or liquid, or a feeling that food is getting stuck.
- A change or hoarseness in the voice. A voice that stays rough, strained, or different.
- Other possible symptoms. These can include a white or red patch in the mouth, ear pain or ringing, or a persistent nasal blockage or nosebleeds, depending on where the cancer starts.
In short: a persistent lump, sore, sore throat, swallowing trouble, or voice change are the symptoms to watch for.
Why these symptoms are easy to miss
A sore throat or mild hoarseness can come from something common, like a cold. That overlap is why a symptom that lingers matters. One that does not go away deserves a second look.
What to do
NCI advises checking with a doctor or dentist about any of these symptoms. Do not wait for them to go away on their own.
When to get help sooner
- Call 911 or go to an emergency department if you suddenly cannot breathe well, feel like your airway is closing, cannot swallow your own saliva, or have heavy bleeding from the mouth or nose that will not stop. Do not drive yourself.
- Call your care team the same day if breathing or speaking feels newly harder, but gradually — not the sudden kind above — or you have unusual bleeding in your mouth, a nosebleed that keeps coming back, or swelling of the face, jaw, or eye.
- Call your care team within a day or two if a lump in your neck, a mouth or throat sore, a sore throat, ear pain or ringing, or a hoarse voice does not go away. Also call if a white or red patch appears in your mouth or your dentures stop fitting.
Sources
Common questions
What is the most common early symptom of head and neck cancer?
NCI lists a lump in the neck or a sore in the mouth or throat that does not heal, a sore throat that does not go away, trouble swallowing, and a change or hoarseness in the voice. Symptoms vary with where the cancer starts.
When should I see a doctor or dentist about a mouth sore?
NCI says to check with a doctor or dentist about a sore in the mouth or throat that does not heal. If it is not getting better, do not wait.
Is a hoarse voice always a sign of cancer?
Not always, but a change or hoarseness in the voice is one of the symptoms NCI lists. If it does not go away, have a doctor check it.
What symptoms mean I should get help right away?
Sudden difficulty breathing, a sense that your airway is closing, or being unable to swallow your own saliva are emergencies. Go to an emergency room or call for emergency help right away rather than waiting for a scheduled appointment.
Do these symptoms always mean cancer?
Not always. Other conditions can cause similar symptoms. But NCI advises checking with a doctor or dentist about any of these symptoms.
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Last updated: 2026-10-02Next planned review: 2027-08-03
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Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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