14+ Left Preauricular Lymph Node Swollen Images. Some medical problems, such as infections, can cause them to swell. We'll go over some of the reasons why they may be swollen or painful and when you.

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While swollen lymph nodes seem like something that would have obvious signs, there are times when no symptoms will occur (or, at least no symptoms. When people refer to swollen glands in the neck, they are usually referring to swollen lymph nodes. It could be as serious as cancer or as simple as an allergic reaction.

Learn when to see your doctor to rule out something rare, but more serious.

It is the adaptive immune system killing a recognized bug that it has dealt with before and created an antibody against. Swollen lymph nodes are rarely caused due to cancer. Find out what the cause might be, and what to do. Lymph nodes, including your occipital lymph nodes, are usually about the size of a small pea or bean and in normal circumstances, can't be felt.