Swollen lymph nodes behind the ear indicate an infection. They can be felt with the fingers and are painless in most cases. The lymph nodes swell as soon as a bacterial, viral or fungal infection occurs. Then they produce additional antibodies to find the infectious agents.
Lymph nodes behind the ear may swell when an individual is experiencing a bacterial, viral, or fungal infection in the ear, throat, or eye. An allergic reaction can also lead to swelling. Infections that specifically affect the lymph nodes behind the ear include:
Additionally, lymph nodes in this region may swell due to sores on the neck. Autoimmune diseases can weaken the immune system, potentially resulting in swollen lymph nodes. Furthermore, certain cancers, such as lymphoma or leukaemia, can manifest as swollen lymph nodes behind the ear, serving as an early warning sign of the disease.
Pain in the ear, teeth, and lymph nodes can be associated with a variety of medical conditions. For example, ear infections can cause intense discomfort that radiates to the teeth and lymph nodes in the neck.
Similarly, dental infections—particularly abscesses—may lead to inflammation and pain in the lymph nodes near the ear. Additionally, upper respiratory infections, such as sinusitis, can result in widespread pain affecting the ear, teeth, and lymph nodes. In all cases, it is essential to consult a healthcare professional to identify the underlying cause and receive appropriate treatment. Prompt medical attention can help prevent complications and alleviate discomfort.
It is common for lymph nodes to become enlarged after receiving the Covid-19 vaccine, as this is a normal immune response to vaccination. Swelling may occur on the side where the vaccine was administered, particularly affecting the axillary lymph nodes. However, there have been no reported cases of enlarged lymph nodes in the ear following vaccination.
This temporary swelling is generally a sign that the body is building protection against the virus and should resolve within a few days. If swelling persists or is accompanied by other concerning symptoms, it is advisable to consult a healthcare professional.
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Swollen lymph nodes can also occur in babies, but this is usually harmless. It shows that the baby has an intact immune system which, especially in the first years of life, often fights against still unknown pathogens and viruses. An appointment with the paediatrician is only necessary if the swelling persists for more than two to three weeks or the child suffers from fever, loss of appetite, tiredness or weight loss.
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