Throat cancer symptoms can be worrying, particularly when they do not settle as expected. Most sore throats, voice changes and swallowing difficulties are caused by common conditions such as viral infections, reflux or irritation. However, symptoms that persist, worsen or occur alongside a neck lump should be assessed.
The term throat cancer can include cancers affecting the pharynx, which is the passage behind the nose and mouth, the larynx or voice box, and the tonsil area. Symptoms vary according to the part of the throat affected.
Recognising the early signs of throat cancer does not mean assuming the worst. It means seeking appropriate advice so the cause can be identified and, if needed, treated promptly.
What are the early warning signs of throat cancer?
Early symptoms of throat cancer may be mild and can resemble a lingering cold, throat infection or reflux. The key concern is usually a symptom that does not improve, has no clear explanation or becomes more noticeable over time.
Persistent sore throat
A sore throat is very common and usually improves on its own. However, a persistent sore throat that lasts for around three weeks or longer, particularly on one side, should be checked.
You may notice pain when swallowing, discomfort that does not respond to usual self-care or a sore throat alongside other symptoms such as hoarseness, a neck lump or unexplained weight loss.
Hoarseness or a change in your voice
A hoarse, croaky or weaker voice that does not return to normal can be a symptom of laryngeal cancer, which affects the voice box.
Voice changes are often caused by laryngitis, vocal strain or acid reflux. However, NICE advises that persistent, unexplained hoarseness should be assessed, particularly in people aged 45 and over.
Pain or difficulty swallowing
Difficulty swallowing is called dysphagia. It may feel as though food is sticking in your throat, taking longer to go down or causing pain as you swallow.
Dysphagia has many possible causes, including reflux, inflammation and narrowing of the oesophagus. Dysphagia symptoms should not be ignored, especially if they persist or affect eating and drinking.
A lump or swelling in the neck
A new lump in the neck, or a lump that is getting larger, needs medical assessment. Neck lumps can be caused by infections, thyroid conditions or swollen glands. In some cases, they may be linked to a cancer affecting the head and neck.
An unexplained neck lump is one of the symptoms for which NICE recommends consideration of a suspected cancer referral pathway.
Find more guidance on when to worry about a neck lump.
Ear pain that does not go away
Persistent pain in one ear without an obvious ear infection can sometimes be referred pain. This means the pain is felt in the ear but comes from another area, such as the throat.
Ear pain on its own is unlikely to mean throat cancer. It is more important to arrange an assessment if it continues or occurs with a persistent sore throat, swallowing difficulty, voice change or neck lump.
Unexplained weight loss
Weight loss without trying can have many causes. If you are losing weight unintentionally, especially alongside ongoing throat symptoms, it is important to speak with a doctor.
Other possible symptoms of throat cancer
Less common symptoms of throat cancer can include:
- A persistent cough
- Bad breath that does not improve
- A feeling that something is stuck in the throat
- Pain when swallowing
- Breathlessness or noisy breathing
- Coughing up blood
- Ongoing tiredness or reduced appetite
These symptoms are not specific to cancer and are much more often caused by other conditions. Even so, persistent or worsening symptoms deserve medical advice. The NHS lists a persistent voice change, neck swelling, swallowing problems, breathlessness, ongoing earache and unintentional weight loss among the possible symptoms of laryngeal cancer.
What does throat cancer feel like?
Throat cancer does not always cause pain in its earliest stages. Some people notice a persistent scratchy or sore feeling, a change in their voice or discomfort when swallowing. Others may first become aware of a lump in the neck.
There is no single symptom that confirms throat cancer. What matters most is whether a symptom is persistent, unexplained or progressively worsening.
Can a sore throat be throat cancer?
A sore throat is usually caused by a viral infection, tonsillitis, allergies, reflux or irritation from smoking. Throat cancer is an uncommon cause.
Seek medical advice if a sore throat does not improve after around three weeks, keeps returning, affects one side more than the other or occurs with any of the following:
- Hoarseness or a persistent change in your voice
- Pain or difficulty when swallowing
- A lump in your neck
- Ear pain without a clear ear problem
- Unexplained weight loss
- Coughing up blood
When should I worry about a persistent sore throat?
Arrange an ENT assessment if your sore throat lasts for several weeks, has no clear cause or is getting worse. You should also seek advice sooner if you have a neck lump, difficulty swallowing, persistent hoarseness or unexplained weight loss.
Call 999 or attend A&E if you have severe breathing difficulty, are gasping, choking or unable to speak in full sentences.
How is throat cancer diagnosed?
If you have symptoms that need investigation, an ENT specialist will first ask about your symptoms, medical history and any relevant lifestyle factors. They will examine your mouth, throat and neck.
Further tests may include:
Flexible nasendoscopy: a thin, flexible camera passed gently through the nose to view the throat and voice box
Imaging scans: such as ultrasound, CT, MRI or PET-CT, depending on the symptoms and findings
Biopsy: a small tissue sample taken for laboratory testing if an area needs closer assessment
A referral for suspected cancer does not mean that you have cancer. It is a precautionary route to identify the cause of symptoms promptly. NICE notes that most people referred for suspected cancer will not receive a cancer diagnosis.
Reducing your risk of throat cancer
Some risk factors cannot be changed, but there are steps that can help reduce the risk of cancers affecting the throat and voice box:
- Do not smoke or use tobacco products
- Keep alcohol consumption within lower-risk guidelines
- Maintain good oral health and attend regular dental check-ups
- Eat a balanced diet that includes fruit and vegetables
- Attend cervical screening and discuss HPV vaccination with an appropriate healthcare professional where relevant
These steps cannot guarantee prevention, but they support overall health and reduce risk.
When to seek specialist advice
Persistent throat symptoms can affect comfort and day-to-day life. An ENT assessment can help identify the cause, whether it is reflux, infection, a voice condition, a swallowing problem or something requiring further investigation.
If surgery is recommended as part of cancer treatment, read what to expect when recovering from throat cancer surgery.
If you are concerned about throat cancer symptoms, including a persistent sore throat, hoarse voice, swallowing difficulty or neck lump, contact The ENT Consultancy to arrange an assessment.
