
Enlarged lymph nodes — although an unpleasant phenomenon, it is not always dangerous, but you should not ignore it. Why do lymph nodes become inflamed and sore?

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Lymph nodes are part of the lymphatic system. They are located in strategically important areas of the body — on the folds of the arms and legs, on the neck, under the jaw, in the chest and abdominal cavity. Lymph nodes perform a very important task in the body. These are a kind of biological “roadblocks”. They trap viruses, bacteria and other foreign agents. And lymphocytes — immune cells that are produced in the lymph nodes — destroy them. Why do lymph nodes become inflamed and what to do about it?
Causes of enlarged lymph nodes
The main cause of swollen lymph nodes (lymphadenopathy) is infection. Most often, with a massive attack of viruses or bacteria, the lymph nodes become inflamed, “serving” the area where the infectious process has developed.
Their increase and soreness in this case is not yet a cause for concern. When the body copes with the infection, the lymph nodes will return to their normal size. But, alas, there are more serious causes of lymphadenopathy.
Why are the lymph nodes in the neck inflamed
In the neck, lymph nodes become inflamed most often, and there are several reasons why this can happen. In some cases, it is worth calming down, and in others, going directly to the doctor. Also, inflammation of the lymph nodes accompanies some diseases.
This is why the lymph nodes in the neck become inflamed:
- SARS, respiratory diseases;
- inflammation in the sinuses, nasopharynx;
- dental problems — caries, pulpitis;
- common infections — chickenpox, measles, for example;
- skin inflammation;
- otitis
In addition, enlarged lymph nodes in the neck can symbolize a tumor lesion of the lymphatic system, mechanical damage to the lymph node itself.

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In rare cases, the lymph nodes in the neck increase due to:
- thyroid disease;
- metabolic disorders;
- alcoholism, drug addiction;
- severe allergic reaction.
In very rare cases, those who are unlucky enough to face the active growth of a wisdom tooth can complain about an enlarged lymph node. Especially if it does not grow at all where we would like.
Why lymph nodes become inflamed: other areas
- With an intestinal infection, the lymph nodes become inflamed in the abdominal cavity.
- And with inflammatory diseases of the genitourinary system — in the groin.
All this is a normal reaction of the immune system, which is trying to localize the infection. But if the healing process is delayed or there is pain in the area of the lymph node, you need to see a doctor.
cat scratch disease

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Often, inflammation of the lymph nodes (especially in children) causes “cat scratch disease” — felinosis. It develops if the body gets the bacterium Bartonella, which lives in the mouth and on the claws of cats.
When bitten or scratched, the pathogen enters the bloodstream. A small spot with a red rim appears at the site of the scratch. Over time, it turns into a vial filled with liquid, and the lymph node closest to the wound increases.
Most often, inflammation goes away on its own. But sometimes, with a weakened immune system, antibiotics prescribed by a doctor may be needed.
There is no need to treat a cat for felinosis. Bartonella is not dangerous for animals.
Inflamed lymph nodes: when to go to the doctor
If the lymph nodes are enlarged, the first reaction is to go to the Internet and read a lot of horror stories on the forms. Do not rush to get scared and diagnose yourself — most often the lymph nodes increase, signaling various health problems, of which only a small percentage are terrible diseases.
Usually the lymph nodes become inflamed and are accompanied by other symptoms of infection that you will definitely feel. For example — a sore throat plus an inflamed lymph node, a toothache plus an inflamed lymph node.
It is advisable to consult a doctor if:
- you feel general weakness, malaise;
- increased temperature;
- headache, throat, ear, teeth;
- runny nose, stuffy nose.
It is also recommended to be concerned if the lymph nodes are inflamed for no reason. It is worth consulting a doctor and undergoing an examination for systemic inflammation. For no apparent reason, the lymph nodes become inflamed with oncology, autoimmune diseases.

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Urgently see a doctor: dangerous symptoms of inflammation of the lymph nodes
If inflammation of the lymph nodes in a heap with symptoms of a cold is a common thing and goes away when the sore passes, then these symptoms cannot be ignored.
You should run to the doctor if:
- the skin above the lymph node is red, hot, pulsation is felt inside;
- inflammation of the lymph nodes not only on the neck;
- lymph nodes do not move when pressed;
- fever, sweating, weight loss are added to the inflammation of the lymph nodes;
- inflammation of the lymph nodes makes it difficult to swallow and breathe;
- lymph nodes are enlarged for more than two weeks.
Women should be concerned if the lymph node is greatly enlarged in the armpit: this may indicate tumors in the breast.
What to do if the lymph node is enlarged
Many try to somehow alleviate the condition, if the condition is very annoying. Here are some quick tips that will tell you what to do if the lymph node is enlarged:
- ensure peace and relaxation for yourself, you don’t have to go to work, do the cleaning and run to the gym, even if you really want to;
- take painkillers, but only on the recommendation of a doctor;
- moisten a cotton pad in warm water, wring it out and put it on your neck (it can hurt if the lymph node fester).
But in general, an increase in the lymph node signals that something is wrong in the body. Treat the disease, not the symptoms, and be healthy!
The opinion of the editors may not coincide with the opinion of the author of the article.