What are the common causes of sore, swollen lymph nodes in the neck?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Swollen lymph nodes in the neck are most commonly caused by infections such as colds, sore throats, ear infections, or dental issues. Less often, they may signal more serious conditions like autoimmune disorders, tuberculosis, or certain cancers, including lymphoma.

Because the causes range from mild to serious, it's important not to guess. A free, instant, online symptom check can help you understand what may be behind your swollen lymph nodes, evaluate your risk level, and guide you on whether to monitor at home or seek medical care—saving you time, worry, and unnecessary uncertainty.

Reviewed for medical accuracy: 07/20/2026

Important Next Steps

Discover likely causes of swollen neck nodes Learn if neck swelling needs care today Find out what your lymph nodes mean See OTC relief for swollen neck discomfort Find a doctor for swollen neck nodes Understand home remedies for lymph node swelling Check if swollen lymph nodes need treatment

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Explanation

Swollen lymph nodes in the neck, also known as cervical lymphadenopathy, are commonly a response to infections. When you have a cold or sore throat, your body fights the germs, which can make your lymph nodes swell. This is normal and usually goes away once the infection clears.

Here are some common causes:

Infections: Most often, infections like the common cold, sore throat, or ear infections can cause swelling.
Other Causes: Sometimes, more serious conditions like certain cancers or immune system diseases can cause lymph nodes to swell.

In rare cases, bacterial infections, such as listeriosis, can also lead to swollen lymph nodes. If the swelling doesn't go away or you feel very sick, you can use our free AI symptom checker to better understand your symptoms and determine if you need to see a doctor.

(References)

Karagozoglu KH, Castelijns J, Bloemena E, de Bree R, & van der Waal L. (2011). [An enlarged lymph node in the neck; what to do?]. Nederlands tijdschrift voor tandheelkunde, 21661247.
Motyckova G, & Steensma DP. (2012). Why does my patient have lymphadenopathy or .... Hematology/oncology clinics of North America, 22463834.
Rosenthal R, Vogelbach P, Gasser M, & Zimmerli W. (2001). Cervical lymphadenitis--a rare case of focal listeriosis. Infection, 11440390.

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