The short answer
Most neck lumps are swollen glands fighting an infection, and the NHS says these usually settle within one to two weeks. A lump that stays, grows, or feels hard needs a GP appointment.
The NHS says swollen glands are usually a sign the body is fighting infection and normally get better on their own within 1 to 2 weeks.
The NHS says to see a GP if glands are getting bigger, have not gone down within a week, feel hard or do not move, or come with night sweats or a very high temperature.
A swollen gland just above or below the collar bone is on the NHS see-a-GP list, as is swelling with no other sign of illness.
The NHS says to ask for an urgent GP appointment or NHS 111 help if a swollen gland comes with real difficulty swallowing or difficulty breathing.
Watch: A lump in your neck: when to worry
48 sec · Captioned · Most neck lumps are infection-fighting glands — when one needs a closer look.
Educational only — this video explains general report language and is not medical advice. Only your care team can say what a result means for you.
Choose how you want to understand this
The full explanation.
Most neck lumps are glands doing their job
There are dozens of lymph nodes in the neck. The NHS describes swollen glands as usually a sign the body is fighting an infection, and says they feel like tender, painful lumps on each side of the neck, under the chin, in the armpits or around the groin.
It adds that a gland on just one side can swell by itself, and that a sore throat, cough or high temperature often comes with it.
The timeline it gives is one to two weeks. Rest, fluids and ordinary painkillers are the whole of the advice for that period.
The clock the NHS actually uses
Two NHS pages give slightly different numbers, and both are useful.
The swollen glands page says to see a GP if the glands are getting bigger or have not gone down within a week. The general page on lumps says to see a GP if a lump lasts more than 2 weeks, or if a swelling on the side of the neck, armpit or groin has not gone down within 2 weeks.
So: about a week for a tender gland that came with a cold, and two weeks for a lump that arrived without one.
Which lumps a GP wants sooner
The NHS lists these as reasons to book rather than wait it out:
- glands that are getting bigger, or have not gone down within a week.
- a lump that feels hard, or does not move when you press it.
- night sweats, or a very high temperature with feeling hot, cold or shivery.
- a swollen lump with no other sign of illness or infection.
- swollen glands just above or below the collar bone.
None of these are emergencies. They are the details that move an appointment up the list.
When a neck lump affects the airway
A neck lump sits beside the windpipe and the swallowing tube, and that is the one situation where speed matters.
The NHS says to ask for an urgent GP appointment or get help from NHS 111 if you have swollen glands and you are finding it very difficult to swallow, or have difficulty breathing.
Severe breathing trouble is separate. The NHS says to call 999 or go to A&E for severe difficulty breathing, gasping, choking, not being able to get words out, a tight or heavy chest, or lips and skin turning very pale, blue or grey.
The cancers that can show in the neck
NCI says head and neck cancer symptoms may include a lump in the neck, a sore in the mouth or throat that does not heal, a sore throat that does not go away, difficulty swallowing, and a change or hoarseness in the voice. It notes these can also be caused by less serious conditions.
Lymphoma is the other one people think of. NCI lists painless swollen lymph nodes in the neck, underarm or groin among Hodgkin lymphoma symptoms, alongside fever for no known reason, drenching night sweats, unexplained weight loss over the past 6 months, itchy skin and heavy tiredness.
Thyroid lumps sit at the front of the neck and are usually benign.
What the examination covers
The NHS says the GP will look at your lump and may be able to say what is causing it. If they are unsure, they might refer you to hospital for tests such as an ultrasound scan or a biopsy.
Before you go, note when you first felt it, whether it has changed size, whether it hurts, and whether you have had a sore throat, dental problem, fever, night sweats or weight loss. When Should I Worry About a Symptom? covers how those details get weighed.
Sources
Words to know
Tap any term to see what it means.
Common questions
How long should a neck lump last before I worry?
The NHS says swollen glands from an infection usually go down within 1 to 2 weeks, and lists glands that have not settled within a week, or that keep growing, as a reason to see a GP. Its general lumps advice uses 2 weeks.
Does a hard, fixed lump mean cancer?
Not on its own, but it changes the priority. The NHS lists glands that feel hard or do not move when you press them among the reasons to book a GP appointment rather than wait.
What if breathing or swallowing is affected?
The NHS moves that into the urgent group: ask for an urgent GP appointment or get help from NHS 111 if a swollen gland comes with very difficult swallowing or difficulty breathing. Severe breathing difficulty is a 999 call.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Your next step
Write down timing, severity, changes, and questions before you talk with a clinician.
Speak With Trained Specialists & Human Navigators
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
Talk to a trained cancer information specialist
Free, confidential assistance from NCI Cancer Information Service via phone, chat, or email.
Contact your oncology team
Locate after-hours contact numbers, portal messages, or urgent triage phone lines.
Find a patient navigator
Get one-on-one help with appointments, logistics, translation, and care coordination.
Find a genetic counselor
Discuss inherited mutation risk, family history, and genetic testing options.
Find an oncology social worker
Access emotional counseling, family support groups, and mental health resources.
Find a financial navigator
Locate copay assistance foundations, grant programs, and lodging/travel support.
Find a clinical-trial specialist
Search matching studies and speak with NCI trial information specialists.
Get urgent help
Immediate emergency guidance for fever (>100.4°F during chemo), severe pain, or shortness of breath.
Help Us Improve This Guide
Did this explanation answer your question and help you determine your next step?
Know someone who needs this?
Plenty of people are looking for something like this and do not know where to start. If this would help a friend or someone you love, send it on — we have written an opening line so you do not have to stare at an empty message. You can change every word of it.
Your message is written and sent in your own email or messaging app — we never see who you send it to, and nothing is added to any list.
Knowledge Check
0 of 2 answered
This self-assessment checks understanding of educational content only. It is not medical advice.
Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.
Sources last checked: 2026-08-09 what this meansLast updated: 2026-08-09Next planned review: 2027-07-20
How this page was created
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. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status — Editorial review complete. This page completed Cancer Explained's editorial checks (sources, safety, plain language, duplication). It has not been reviewed by a physician or other healthcare professional.
General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team 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.
How this page was created
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. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Editorial review complete — This page completed Cancer Explained's editorial checks (sources, safety, plain language, duplication). It has not been reviewed by a physician or other healthcare professional.
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.
Read more about our editorial process, our use of AI, and our corrections policy.
Spotted a problem? Report an error — a factual mistake, broken or outdated source, confusing wording, or anything that seems unsafe. Please do not include names, medical record numbers, dates of birth, addresses, or other identifying medical information in your report.
After using this page, do you understand what to do next?
Anonymous — we only record the answer, never who gave it.
Related articles
Still have questions?
Educational answers, plain language
Free to print and share