How do I know I need a neck ultrasound?
A neck ultrasound examines abnormalities in the neck such as lumps, cysts, swollen lymph nodes and enlarged glands. If you or your doctor have found a lump in your neck, you have ongoing pain or swelling, or another test has flagged a problem, an ultrasound is usually the quickest way to an answer. Please don’t leave it to chance. The sooner you have a clear answer, the sooner you can stop worrying or start the right treatment.
What can cause neck lumps and swelling?
The neck contains many structures: lymph nodes, salivary glands, the thyroid, muscles and vessels, and lumps can arise from any of them. The most common causes are reassuringly ordinary:
- Swollen lymph nodes reacting to a virus or infection
- A stone or blockage in a salivary duct
- Benign cysts and fluid collections
- Lipomas: soft, benign fatty lumps
- Thyroid nodules or a goitre
Less commonly, a lump needs more serious attention, which is exactly what the scan is designed to sort out quickly.
Does a neck ultrasound hurt?
No. The probe rests gently on the skin with a little warm gel. No needles, no radiation, no downtime, and you can go straight back to work. You lie with your head tilted slightly back on a pillow, which some people find briefly uncomfortable; if anything feels wrong at any point, tell your specialist and they will adjust.
Do I need to fast for a neck ultrasound?
No: a neck ultrasound needs no fasting and no preparation at all. Eat, drink and take your medication exactly as normal, and come straight from work if that suits you. The only practical tip is to wear an open neckline and leave necklaces at home so the whole neck is easy to reach.
How long does a neck ultrasound take?
Around twenty minutes. That includes a short chat about your symptoms, a systematic scan of both sides of the neck, lymph node chains, salivary glands and the thyroid, and time for the specialist to explain the findings on screen while you watch. You are usually in and out of the clinic within half an hour.
What does a neck ultrasound show?
A neck ultrasound shows the soft tissues of the whole neck in real time. It is the best first test for almost any neck lump because it answers the questions that matter:
- Where a lump sits and which structure it comes from
- Whether it is solid, fluid-filled (a cyst) or mixed
- The size, shape and internal pattern of lymph nodes
- The salivary glands: stones, blockages and swelling
- The thyroid gland, checked as standard
It also shows blood flow within a lump, which helps characterise it further.
Can a neck ultrasound detect cancer?
Ultrasound cannot diagnose cancer by itself, but it is very good at telling apart lumps with entirely benign features from the small minority that need further testing, including the lymph node changes seen in conditions like lymphoma. If anything needs a closer look, your specialist explains why, and an ultrasound-guided fine-needle sample can be arranged at 99 Harley Street, often the same week. Most neck lumps, it is worth saying clearly, turn out to be benign.
Can a neck lump be nothing serious?
Yes: most are. The great majority of neck lumps are reactive lymph nodes, benign cysts, lipomas or salivary changes that need nothing more than reassurance or a review date. But a lump is also not something to guess about: a twenty-minute scan replaces weeks of worrying with an actual answer, explained to you on the day.
When should I see a doctor about a neck lump?
See a doctor promptly, or book a scan directly: if a lump comes with any of the following:
- A lump that is growing, or has lasted more than two to three weeks
- Difficulty swallowing, eating or breathing
- A hoarse voice that does not settle
- Skin changes over the lump
- Unexplained weight loss, night sweats or fever
All of these can have ordinary causes, but they are the symptoms worth checking without delay.
Why are the glands in my neck swollen?
Swollen lymph glands in the neck are most often a normal reaction to an infection such as a cold, sore throat, ear or dental infection, and usually go down over two to six weeks. Glands that keep growing, are larger than about 2cm, feel hard or fixed, or last longer than six weeks should be checked.
What is a lump under my jaw?
A lump under the jaw is often a lymph node or the submandibular salivary gland, which can swell, especially around mealtimes, if a stone blocks its duct. Ultrasound shows the gland, any stone and the nearby nodes, so the cause is usually clear.
What is the lump behind my ear?
Lumps behind the ear are commonly lymph nodes reacting to a scalp or ear infection, skin cysts or, in front of the ear, the parotid salivary gland. Ultrasound tells these apart and shows whether anything needs follow-up.
Can a neck ultrasound check my thyroid?
Yes: a neck ultrasound includes the thyroid as well as the lymph nodes and salivary glands. If your concern is specifically the thyroid, for example a thyroid nodule or an abnormal thyroid blood test, the dedicated thyroid ultrasound gives a more detailed, graded assessment of the gland.
When is a neck swelling an emergency?
Go to A&E or call 999 if a neck swelling comes with difficulty breathing or swallowing, drooling, a high fever with a very sore throat, or rapidly spreading redness.
What if you find something?
Your specialist tells you in the room, in plain English, and explains exactly what it means. You will never be sent home to wait for a letter. Most findings are benign and need nothing more than a sensible review date.
Anything that does need attention gets a clear, objective recommendation in your report: monitor, sample, or refer. If a lump or lymph node needs characterising, an ultrasound-guided fine-needle sample can be arranged at 99 Harley Street, often the same week, and those results are also explained to you personally.
Do I need a referral?
No. Harley Street Ultrasound is a private clinic, so you can book a neck ultrasound in London directly online or by phone. No GP letter, no waiting list, and same-day or next-day appointments are usually available. If you are searching for a neck ultrasound near me from anywhere in central London, we are at 99 Harley Street, a short walk from Regent’s Park and Oxford Circus stations.
If you are wondering how much a private neck ultrasound costs, the answer is published before you book: £280, all fees inclusive: the examination, the specialist’s time, your written report and your images. Insured patients should bring a referral or authorisation number if their policy requires one.
How soon will I have the written report?
Usually the same day: a Harley Street neck ultrasound comes with same-day results as standard, and you will already know the findings, because they are explained to you on screen during the appointment.
The written report is prepared by the specialist team and published to your secure patient portal together with your images. It covers each area examined: lymph nodes, salivary glands and thyroid, with measurements and a clear recommendation, ready to share with your GP or specialist.
What happens after the scan?
Nothing special: there is no aftercare needed. You can eat, drive and go back to work straight away. Diagnostic ultrasound at these intensities has no confirmed adverse effects, which is why it can be repeated safely for monitoring. If your results suggest a next step, your specialist explains it before you leave.
Can I still use the NHS afterwards?
Yes: completely. Coming to us privately never affects your NHS care. Our job is to get you answers quickly; if anything needs urgent attention, your specialist writes to your NHS GP recommending an urgent appointment, so you re-enter the NHS pathway with a diagnosis already in hand rather than joining the queue from the start.
