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 visit to your primary care doctor.
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.
MedlinePlus says to contact your provider if glands keep getting bigger or do not get smaller after several weeks, feel hard, irregular or fixed in place, or come with fever, night sweats or weight loss.
A swollen gland just above or below the collar bone is on the NHS see-a-doctor list, as is swelling with no other sign of illness.
If a swollen gland comes with trouble swallowing or breathing, call your doctor right away. Breathing trouble that comes on suddenly or makes it hard to talk means 911 or the emergency room.
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.
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The whole article, with every detail and caution.
This page is for anyone who has found a lump in their neck. It explains the usual causes, how long to wait before seeing a doctor, and which signs need faster care.
Most neck lumps are glands doing their job
There are dozens of lymph nodes in the neck. The NHS (the UK's National Health Service) describes swollen glands (lymph nodes) 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.
How long to wait
MedlinePlus says a swollen gland may take several weeks to go back to its normal size. It says to contact your provider if your glands do not get smaller after several weeks, or if they keep getting larger.
A gland that keeps growing does not need to wait out that clock. Nor does a lump that came with no cold or infection at all. The American Cancer Society says to have an enlarged lymph node checked by a doctor, especially if it does not go away or gets worse.
Which lumps a doctor wants to see sooner
The NHS and MedlinePlus list these as reasons to book with your primary care doctor rather than wait it out:
- glands that keep getting bigger.
- a lump that feels hard or irregular, 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.
If you have swollen glands and you are finding it hard to swallow, or have difficulty breathing, call your doctor right away. MedlinePlus says to contact your provider right away if you feel as if you are choking during or after eating or drinking, or if swallowing trouble comes with shortness of breath.
Severe breathing trouble is separate. MedlinePlus says to go to the emergency room or call 911 if breathing difficulty comes on suddenly or seriously gets in the way of breathing and talking. Gasping, choking, not being able to get words out, or lips turning blue or grey all belong here.
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
- 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. Lymphoma is a cancer of the lymph system. NCI lists these among Hodgkin lymphoma symptoms:
- painless swollen lymph nodes in the neck, underarm or groin
- fever for no known reason
- drenching night sweats
- unexplained weight loss over the past 6 months
- itchy skin
- heavy tiredness
Thyroid lumps sit at the front of the neck and are usually benign.
What the examination covers
The NHS says the doctor 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
- NHS — Swollen glands
- NHS — Lumps
- MedlinePlus — Swollen lymph nodes
- MedlinePlus — Swallowing difficulty
- MedlinePlus — Breathing difficulty
- American Cancer Society — Can Non-Hodgkin Lymphoma Be Found Early?
- National Cancer Institute — Head and Neck Cancers
- National Cancer Institute — Adult Hodgkin Lymphoma Treatment (PDQ)

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. MedlinePlus says to contact your provider if they keep getting bigger, or do not get smaller after several weeks. A lump that came with no infection at all is worth showing your doctor without waiting.
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 doctor's appointment rather than wait.
What if breathing or swallowing is affected?
That moves it into the urgent group: call your doctor right away if a swollen gland comes with trouble swallowing or breathing. Breathing trouble that comes on suddenly or makes it hard to talk is a 911 call.
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Sources last checked: 2026-08-09 what this meansLast updated: 2026-09-29Next planned review: 2027-07-20
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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.
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