What could cause swollen lymph nodes in the neck along with a sore jaw?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Swollen lymph nodes in the neck combined with a sore jaw are most commonly caused by infections such as parotitis (inflammation of the parotid salivary gland), dental abscesses, strep throat, mononucleosis, or ear infections. Less commonly, these symptoms may point to salivary gland stones, autoimmune conditions like Sjögren's syndrome, or, rarely, tumors affecting the glands or lymphatic tissue in the neck.

Because these symptoms overlap across many possible conditions—ranging from mild to serious—identifying the underlying cause quickly matters. Taking a free, instant, online symptom check can help you narrow down likely causes based on your specific symptoms, understand urgency, and decide whether home care, a dentist visit, or a doctor's appointment is your best next step.

Reviewed for medical accuracy: 07/20/2026

Important Next Steps

Discover what’s causing your swollen neck nodes Learn if sore jaw needs urgent care Find out if swollen lymph nodes are serious See OTC options for neck pain relief Find a doctor for lymph node concerns Understand home remedies for swollen neck nodes Check if swollen neck nodes need care

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Explanation

Swollen lymph nodes in the neck and a sore jaw can happen due to several reasons. One common cause is parotitis, which is an infection of the parotid glands. This condition can lead to swelling in the neck and jaw area, as discussed in Reference 1. Parotitis can be caused by viruses or bacteria, leading to pain and swelling.

Another reason for swollen lymph nodes could be cervical lymph node inflammation, especially in children, as mentioned in Reference 2. This occurs when the lymph nodes in the neck become enlarged due to infections or other conditions.

Lastly, swelling under the jaw might be due to issues with the submandibular glands, as noted in Reference 3. These glands, located beneath the jaw, can become swollen due to infections, stones, or other issues causing discomfort and swelling.

If you are experiencing these symptoms, you can use our free AI symptom checker to help identify potential causes and determine whether you should consult a healthcare provider for a proper diagnosis and treatment plan.

(References)

Patel P, Scott S, & Cunningham S. (2017). Challenging Case of Parotitis: A Comprehensive Approach. The Journal of the American Osteopathic Association, 29181524.
Pain F, & Plainfosse B. (1988). [Cervical lymph node inflammation in children]. Annales d'oto-laryngologie et de chirurgie cervico faciale : bulletin de la Societe d'oto-laryngologie des hopitaux de Paris, 3064670.
Eleftheriadis I, Papadimitriou P, & Tzelepi H. (1990). [Submandibular swelling and its differential diagnosis]. To Helleniko periodiko gia stomatike & gnathoprosopike cheirourgike, 2130058.

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