Pain in armpit
Pain in armpit

Causes of pain in armpit

Pain in armpit could be caused by many things that maybe you never realized before. Some causes are common and easy to overcome. On the other hand, pain in armpit may be a sign of a disease or a more serious health condition. Therefore, do not underestimate your pain. Find out what are the causes of pain in armpit below.

Causes of pain in armpit.

Muscle injury.

Pectoralis major muscle, which stretch from the chest to the shoulders can be injured when you have an activity (for example, lifting heavy items) or when exercising. In addition to the chest muscles, the muscles of the upper arm can also stiffen and attracted when we throw, lifting, or perform other movements.

Injury to these muscles can then cause inflammation and onset of pain in the armpits.

Muscle or joint pain such as rheumatism, gout, and bone disease.

Rheumatism and other types of joint pain such as gout or bone disease can cause joints to become inflamed and swollen. It is also possible that swelling occurs around the armpit joints causing pain.

The deodorant content that doesn’t fit into the skin or the wrong shaving technique.

Deodorants contain some specific substances, if don’t fit into the skin, it will cause irritation and pain in armpit. Not just a deodorant, bath soaps and detergents can also be causes of underarm pain due to irritation. In addition, the technique of shaving or plucking the armpit hairs that are incorrectly can also cause a rash called contact dermatitis. This Contact Dermatitis causes reddish, swollen, painful and hot armpit skin.


Anxiety can also be the cause of the rise of the pain in the armpits. Usually, these symptoms are felt in the right armpit. This is due to an increase in heart rate that makes the muscles become tense.


Pain in armpit, especially those that occur on the right side, it can be a symptom of diabetes. This occurs when the nerves of the affected armpit and usually will trigger a sharp pain. However, the symptoms of diabetes are more often seen on the foot.

Lack of oxygen at the arm because of the small blood vessel constriction due to peripheral artery disease.

Peripheral artery disease is a condition of small blood vessel constriction that is on the part of the arm or leg. This constriction reduces the oxygen into the surrounding tissue. Muscles that lack of oxygen for a long time will feel pain. If you are experiencing a peripheral artery disease in one or in both armpits, you will feel the pain in this section.

Herpes zoster.

Shingles is a contagious skin disease caused by the Varicella zoster virus. This virus causes the incidence of irregular red nodule containing the water feels hot and itchy. The areas most commonly affected are the arms, chest, and face. Shingles can also cause a scaly skin rash and tingling sensations in the infected area.

Disorders of the lymph nodes.

There are lots of lymph nodes in the body, but the number of glands that can be felt or touched by hand only a few. Among them at the bottom of the jaw, neck, and armpits. Lymph nodes play a role is crucial to fight disease and keep the body’s durability. The lymph glands can swell when you have an infection, such as the flu. When inflamed lymph nodes, your armpits can also feel pain.

Other causes of pain in armpit:

  • Injury to the shoulder or arm, accompanied by acute pain, including pain in the armpits.
  • The pain can be explained by the surgical interventions on the shoulder, sternum, the breast mastectomy, while the entire chest removed.
  • Cyclic and noncyclic mastalgia: pain sensation, attractive, and feels pain in armpit cavity and mammary glands.
  • Breast tumors, both benign and malignant. Read also: Symptoms of breast cancer in men.
  • Lymphadenopathy: an increase of one or more lymph nodes.

Last Updated on February 23, 2022 Reviewed by Market Health Beauty Team

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