What are the possible causes of left armpit and chest pain?

Douleur aisselle gauche et poitrine : quelles sont les causes ?

The armpits of men are a real crossroads where veins, arteries, lymphatic vessels, lymph nodes, muscles, etc. intersect. Known as an underarm passageway, the armpits are not immune to pathologies and ailments. Thus, pain can be felt in this area of the body, especially in the left armpit. Most of the time, the pain felt also affects the chest. But what could be the causes? What treatment should be considered? Find the answers in this article.

What can cause pain in the left armpit and chest?

There are several reasons why you may experience left armpit and chest pain. Here are some of the most common causes and some of the most common causes and diseases :


Shingles is defined as an infection caused by the varicella-zoster virus. It causes a rash with pain in the armpits, back and finally the chest. Apart from signs, the symptoms also include :

  • Tingling in the affected area;
  • Blistering;
  • Itching;
  • Intense pain before the rash develops.

Treatment involves taking oral antiviral medications to relieve symptoms. In case of persistent painif the pain persists, the treating physician may prescribe painkillers or anti-inflammatory drugs.

Swollen lymph nodes

Men have multiple lymph nodes throughout their body, including the area near the armpits. In this area especially, they are often larger than average. However, the cells inside the lymph nodes help fight infection. When a person develops a large bacterial or viral infection, the lymph nodes may become swollen and cause severe pain in the left armpit.

Douleur aisselle gauche et poitrine

Breast cancer

Pain in the left armpit can be caused by breast cancer. In the early stages of the disease, symptoms may not occur. But when the cancer spreads outside the breast, the lymphatic system may be affected. Then, a lump may form under the arm, in the armpit. These lymph nodes usually cause discomfort. Therefore, when a person notices certain irregularities such as pain in the armpits or chest, he or she should consult a doctor as soon as possible.

Angina of the chest

Infection leading to a great pain at the level of the chestangina pectoris is caused by a temporary decrease in blood flow to the heart. The pain experienced is due to the fact that the heart muscle is not properly oxygenated to ensure its function. In general, the symptoms of such a condition are pain in the shoulder and left armpit, as well as :

  • Dizziness;
  • Sweating;
  • Nausea and vomiting;
  • Respiratory disorder;
  • Chest pain;
  • Neck or jaw pain;
  • Abdominal pain.

When faced with these signs, it is recommended to consult a health care professional for diagnosis and management.

What treatment for left armpit and chest pain?

To treat the pain felt under the left armpit and chest, it is important to know the underlying reason. When the pain is caused by a muscle strain, for example, it is advisable to rest and ice. When the armpit is irritated, the offending element should be avoided. When the lymph nodes are swollen for a benign reason, it is recommended to use warm compresses. In addition, it is advisable to wear loose clothing, avoid shaving and the use of creams and lotions in the armpit area.

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