In addition, children often experience reactive lymph nodes as they first come into contact with new germs throughout childhood, even if they don’t have an infection. These are conditions that involve your immune system mistakenly attacking our body’s tissues. They also sometimes occur as a result of an autoimmune disease, such as lupus. This helps to keep the infection from spreading to other parts of your body.

Lymph fluid builds up in lymph nodes in an effort to trap bacteria, viruses, or other harmful pathogens. Reactive lymph nodes are a sign that your lymphatic system is working hard to protect you. Read on to learn more about reactive lymph nodes, what causes them, and when you should be concerned. Reactive lymph nodes aren’t caused by an infection or cancer within the lymph node itself. In fact, most of the time, reactive lymph nodes are harmless. However, it’s usually not a reaction to anything serious. This means your lymph nodes are reacting to something going on in your body. If you have a biopsy of a mass, you might also see a reference to reactive lymph nodes when you review your lab results. Your doctor may use the term “reactive lymph nodes” when examining you for a swelling or mass. The lymphatic system helps fight off infections and keep them from spreading. They’re part of the lymphatic system, which is also part of your immune system. They’re located in your neck, underarms, chest, abdomen, and groin. You have groups of small, bean-shaped lymph nodes all throughout your body. You might also hear this condition referred to as reactive lymphadenopathy. Swollen glands are actually swollen lymph nodes, which are often reactive lymph nodes. You’ve probably had swollen glands at some point in your life, such as when you’ve had a cold or other infection.

What is shotty mediastinal lymph nodes