Are small sub-centimeter lymph nodes of the neck abnormal?

The answer is: No

Lymph nodes are small, bean-shaped organs that are part of the lymphatic system. They help to filter out bacteria, viruses, and other foreign substances from the body. Lymph nodes are located throughout the body, but they are most commonly found in the neck, armpits, and groin.

The size of lymph nodes can vary depending on the person and their health status. In general, lymph nodes that are less than 1 centimeter in size are considered to be normal. However, lymph nodes that are larger than 1 centimeter in size may be a sign of an underlying medical condition, such as an infection or cancer.

It is important to note that not all enlarged lymph nodes are a sign of cancer. In fact, most enlarged lymph nodes are caused by benign conditions, such as infections. However, it is important to see a doctor if you have any enlarged lymph nodes that are causing you concern.