I Have a Swollen Lymph Node in My Neck — How Long Is Too Long?

I Have a Swollen Lymph Node in My Neck — How Long Is Too Long?

A swollen lymph node is one of the most common reasons people find a neck lump. Here is how to know when it needs attention.

Swollen lymph nodes (also called "swollen glands") are your body's way of fighting infection. They are normal and expected during illnesses like colds, strep throat, ear infections, or dental infections.

• The general rule is:
• Less than 2–3 weeks — typical for an infection-related node
• 2–4 weeks — should be shrinking; if not, have it checked
• More than 4 weeks — needs evaluation, even if small

In children, swollen nodes can take longer to go down and are very common. In adults over 40, a persistent swollen node needs more attention.

What to Look For

• Usually not serious (infection-related):
• Node is tender or painful
• You have a cold, sore throat, earache, or dental problem
• Node is less than 1 cm (about the size of a pea or small bean)
• Node gets smaller as you recover
• Skin over the node is normal or slightly red

• Worth having checked:
• Node that has been present for more than 3–4 weeks without shrinking
• Node that is growing larger
• Hard or rubbery feeling, not soft
• Node that is painless
• Multiple nodes in one area
• No obvious infection to explain it

When to See a Doctor

• See a doctor if:
• The swollen node has not gone down after 3–4 weeks
• It is larger than 1.5 cm (about the size of a grape)
• It feels hard, fixed, or is growing
• You have unexplained fever, night sweats, or weight loss
• You have a persistent sore throat, hoarseness, or trouble swallowing

Clinical Guidance