All About Armpit Lymph Node Infection That You Must Know

Checking the state of the body can be done at any time. Does your armpit ever swell? It can be armpit lymph node infection. Are you worried because you think it’s cancer? Read all the more information here to know what to do.

Lymph Node in Your Underarm

armpit lymph node infection

Swelling in the skin glands certainly makes anyone worry. Many people associate with cancer. But, do you know about lymph nodes? This gland is found in body parts such as the armpits, chin, neck, groin, to the back of the head.
The gland has an essential role in the immune system. Viruses and bacteria that enter the body will be blocked by it. Lymph nodes contain white blood cells. It is part of the immune system that help the body fight infection.

Armpit Lymph Node Infection

So, is it dangerous for a bump in the armpit due to swollen lymph nodes? Actually swollen lymph nodes occur naturally. It is normal.
This swelling arises when foreign substances enter the body. The role of lymph nodes against it by experiencing enlargement due to immune system reactions.

How It Works on Lymph Nodes Against Infection?

When foreign substances enter the body, lymph node reactions increase the number of white blood cells. They multiply in response to stimulation with foreign substances (antigens).

Infection of the lymph nodes results in swelling of the glands under the arm (in the armpit). For mononucleosis or “mono,” HIV infection, and fungal / parasitic infections can even cause swollen lymph nodes throughout the body.

Why Your Under Armpit Swell?

Why Your Under Armpit Swell

Lymph nodes fight infections from bacteria and viruses. However, the other most common causes of swelling of armpits are:

  • bacterial or viral infections
  • lipoma (usually benign fat tissue growth)
  • fibroadenoma (growth of non-cancerous fibrous tissue)
  • hidradenitis suppurativa
  • allergic reaction
  • negative reaction to vaccination
  • fungal infection
  • breast cancer
  • lymphoma (lymphatic system cancer)
  • leukemia (cancer of blood cells)
  • systemic lupus erythematosus (an autoimmune disease that targets your joints and organs)

What Does A Swollen Lymph Node in Your Armpit Feel Like?

Enlarged lymph glands will cause swelling. In the armpits will occur bulges that are seen directly in the mirror.

According to Amber Tully, MD, a general practitioner at states that when the lymph nodes are swollen due to infection, usually accompanied by pain. Sometimes sufferers also experience fever, cough, and sore throat.

Although lymph nodes are found throughout the body, the condition of swelling usually only occurs in the armpits, neck, under the chin, and groin.

To find out if you have underarm lymph infection, you can check this list:

  • Press the lymph nodes, it feels hard.
  • Swollen lymph nodes are usually without cause, also accompanied by a body that feels weak
  • After two weeks, the lymph nodes do not heal with signs of swelling getting bigger.

Check Your Lymph Node by Yourself

Check Your Lymph Node by Yourself

Before examining the condition of the lymph nodes, the first step that needs to be done is to find the location of the lymph nodes. The same thing can be done on the armpit when looking for lymph nodes.

After finding the lymph nodes, you can press on the lymph nodes by using 3 fingers on the back of the ear. Slide 3 fingers slowly towards the neck to the bottom of the jaw.

Lymph nodes are generally clustered and have the size of a pea. Healthy lymph nodes have a more flexible and elastic texture compared to the tissue around the lymph nodes.

Swollen lymph nodes will feel different from healthy lymph nodes. Swollen lymph nodes will certainly feel more awkward and cause pain when pressed too hard.

Before See Your Doctor, This Is All You Can Do

Before the swelling gets bigger, you can take care of the National Institutes of Health – MedlinePlus on your armpits:

  • Enough rest to restore the immune system.
  • Compress swollen or painful areas with a warm, wet cloth. If it’s not effective, you can make a cold compress to relieve inflammation.
  • You can take pain medications such as ibuprofen, naproxen, or acetaminophen to reduce discomfort.
  • Avoid giving aspirin to children because of the natural risk of Reye’s syndrome. Reye’s syndrome can cause swelling of the liver and brain.

When Should You Worry About Lymph Node Infection?

When Should You Worry About Lymph Node Infection

Most of the bumps on the armpits are not dangerous. These lumps often arise due to abnormal tissue growth. But sometimes the swollen lymph nodes in the armpits are caused by more serious health problems.

Besides being more prone to occur in women, swollen lymph nodes in a woman’s armpits need to be aware of. According to Yamini Ranchod, PhD, MS, a female epidemiologist from the United States as quoted from, in women this swelling could be a sign of breast cancer.

Read More:

What is Differrences Lymph Node Infection Between Lymph Cancer

Therefore, a medical examination is needed to detect early any serious health problems that may occur.

In addition to the symptoms above, you must be vigilant if:

  • There is weight loss
  • Night sweats
  • You have a constant fever, difficulty swallowing, and difficulty breathing.

What Are The Signs That You Have A Cancerous Lymph Node?

In contrast to lymph infections that will cause swollen lymph nodes, lymph cancer or often also called lymphoma is a type of malignant cancer that attacks the lymphatic system.

The lymphatic system is an important part of the body’s defense system which is tasked with forming a defense line to fight the presence of infection and cancer.

Here are 6 symptoms of lymph cancer:

Swelling in the lymph node area

This cancer will initially cause swelling or lumps in areas of the body that have lymph nodes. Generally appear around the neck, armpits, and groin.

“However, not necessarily swollen neck lymphoma, if lymphoma, the lump is usually more than one or like a cluster and does not hurt,” Dr. Tully, explained.

Weight loss

Weight loss for no apparent reason also needs to be aware because this can be one of the symptoms of lymph cancer. Usually, weight loss is more than 10 percent and occurs for at least 6 months.

Night sweats

Night sweats that are symptoms of lymph cancer are not due to physical activity. This is due to disturbed cell metabolism. Sometimes accompanied by chills from night to early morning, until the body feels itchiness.


Many diseases that cause symptoms of fever. However, in lymphoma patients, the fever that occurs is usually not too high, which is around 37 degrees celsius and never more than 38 degrees celsius. Fever will disappear.


Lymphoma patients will usually also feel very tired or weak. For example, breathing becomes short and it is difficult to breathe during high activity, whereas before it was fine.

Full stomach

Other symptoms, namely abdominal pain or discomfort. It also feels full in the stomach.

If some of these symptoms appear constantly, you should immediately see a doctor. Armpit lymph node infection is just normal, but you must know more to prevent bad things. Be healthy!

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I am an a bachelor of science education in Yogyakarta State University. Now, I am a blogger who love to share about science and health effect.

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