Swollen lymph nodes occur when the nodes become enlarged to a certain degree. The size that characterizes this condition may be thought of differently by various people. In the case of children, enlargement is generally considered to be anything above 0.4 inch in diameter. For adults, up to a half inch or even slightly above might still be within the range of non-swollen nodes.
These can appear in different locations on the body. Some areas in which they may be more commonly noticed include in the neck, below the chin and jaw, underneath the armpits, behind the ears, on the back of the head, and in the area of the groin. However, it is thought that humans have in general 500 or more lymph nodes in the body, so this issue can occur in a variety of places.
Aside from the swelling, other symptoms can also occur. There may be tenderness and/or pain in the area of the swollen lymph nodes. A sore throat, runny nose, and fever are other possibilities to accompany the condition. Symptoms of a general upper respiratory infection may also occur.
Different medical conditions can be the underlying cause of this issue. Viral infections such as mononucleosis and HIV are possible. Dental or oral problems like an abscessed tooth, an impacted tooth, or gingivitis can also cause it. Some medications and vaccinations also have the potential side effect of swollen lymph nodes. These, along with various other conditions of different levels of severity, can be the medical cause behind the situation.
Feel free to read more about swollen lymph nodes, such as additional general information and details on symptoms, causes, diagnosis, and treatment. Continue reading at SwollenLymphNodes.net.
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