Discover the causes and treatments of pain in the right armpit: from infections and cysts to muscle strains and lymphoma.

Discover the causes and treatments of pain in the right armpit: from infections and cysts to muscle disters and lymphomas.

Experiencing pain in the right armpit can be a worrying symptom that may indicate an underlying medical condition. These discomforts can vary in intensity and be accompanied by swelling, tenderness, or even a lump. Understanding the potential causes and associated symptoms of right armpit pain can help alleviate any anxiety and promote early detection and treatment.

1. Infections: A possible cause of pain in the right armpit is an infection. Infections can occur in the skin or lymph nodes in the armpit. Common skin infections include folliculitis, which is an infection of the hair follicles, or cellulitis, a bacterial infection that can spread to the lymph nodes. Lymphadenitis, an inflammation of the lymph nodes due to infection, can also cause pain and swelling in the armpit.

  1. Non-infectious causes:
    • Lymphadenopathy: Lymphadenopathy refers to enlarged lymph nodes, which can occur in response to infection, inflammation, or cancer. When the lymph nodes in the right armpit enlarge, it can cause pain and discomfort.
    • Muscle strain: Overuse or tightness of the muscles in the right axillary region can cause pain. This may be due to repetitive arm movements, weight lifting, or injury.

It is important to note that persistent or severe pain in the right armpit should be evaluated by a healthcare professional to determine the accurate diagnosis and appropriate treatment. Additionally, other symptoms such as fever, redness, warmth, or discharge from the armpit should not be ignored and warrant medical attention.

Painful Right Armpit: Causes, Symptoms, and Treatment


  1. Infections: Armpit pain can be the result of various infections, such as lymphadenitis, a condition characterized by inflammation of the lymph nodes. This can occur due to bacterial or viral infections in the armpit region.
  2. Injuries: Trauma or injuries to the axillary area, such as a strain or sprain, can cause pain and discomfort. This can occur during physical activities or accidents.
  3. Skin conditions: Certain skin conditions, such as dermatitis or folliculitis, can cause irritation and inflammation in the armpits, causing pain.
  4. Lymphedema: This condition consists in the inflammation of the lymphatic vessels, which usually causes pain and discomfort in the armpits. It may be due to factors such as infections, surgery or radiotherapy.

Note: It is important to consult a healthcare professional to obtain a precise diagnosis if the pain in the armpits persists or aggravates.


  • Pain or sensitivity: The main symptom of pain in the right armpit is the discomfort or sensitivity in the affected area.
  • Inflammation or swelling: The armpit may appear swollen or inflamed, indicating an underlying problem.
  • Buits or bumps: The presence of packages or bumps in the axillary region can be a sign of infection or other medical conditions.
  • Redness or rash: skin discoloration or the presence of an eruption in the axillary zone can suggest an allergic reaction or a skin condition.


The proper treatment for a painful right armpit depends on the underlying cause. It is recommended to go to the doctor to obtain adequate diagnosis and determine the most appropriate treatment plan. The following treatment options can be considered:

  1. Antibiotics: If the axila pain is caused by a bacterial infection, a healthcare professional can prescribe antibiotics to control the infection.
  2. Topical creams: in the case of skin conditions such as dermatitis or folliculitis, creams or topical ointments can be recommended to relieve symptoms and reduce inflammation.
  3. Ant i-inflammatory medications: no n-steroidal ant i-inflammatory (NSAIDs) can help relieve pain and reduce inflammation in the axillary region.
  4. Hot compresses: The application of hot compresses in the affected area can help calm discomfort and reduce inflammation in certain cases.

Important: It is essential to follow the advice of the health professional and complete the prescribed medication.

In general, understanding possible causes, recognizing symptoms and seeking adequate medical attention is essential to control and treat pain in the right armpit. A rapid diagnosis and treatment can help relieve discomfort and effectively treat any underlying condition.

Lymphadenitis: Causes, Symptoms, and Treatment

The most common cause of lymphadenitis is a bacterial infection, usually resulting from an infection in a nearby part of the body, such as the skin or respiratory tract. Bacteria can enter the lymph nodes through the lymphatic vessels, causing an immune response that triggers inflammation. In some cases, a viral infection or autoimmune disease can also cause lymphadenitis. It is important to note that lymphadenitis can occur anywhere in the body and is not limited to the armpit.

Symptoms of Lymphadenitis

  • Pain and tenderness in the affected area
  • Redness of the skin and warmth around the lymph nodes
  • Swollen lymph nodes that feel soft or firm to the touch
  • Difficulty moving the arm or performing activities that involve the affected area
  • Fever and chills

Note: It is important to seek medical attention if lymphadenitis symptoms persist or worsen, as it may be a sign of an underlying infection or other serious health problem.

Treatment of Lymphadenitis

Treatment of lymphadenitis depends on the underlying cause. In cases of bacterial infection, antibiotics may be prescribed to attack the specific bacteria causing the inflammation. Pain relievers, such as nonsteroidal anti-inflammatory drugs (NSAIDs), can help relieve pain and reduce inflammation. In some cases, it may be necessary to drain the affected lymph node to relieve pressure and aid the healing process.

  1. Take prescribed antibiotics as directed by your healthcare professional.
  2. Apply hot compresses to the affected area to reduce swelling and promote blood circulation.
  3. Avoid strenuous activities that may worsen symptoms.
  4. Follow good hygiene practices to prevent new infections.

If symptoms persist or worsen despite treatment, a healthcare professional should be consulted to determine the underlying cause and adjust the treatment plan accordingly.

Lymphadenitis is a condition characterized by inflammation of the lymph nodes. It may cause discomfort, pain, and swelling in the affected area, such as the right armpit. Immediate medical attention is crucial to identify the underlying cause and provide appropriate treatment. Following the prescribed treatment plan and practicing good hygiene can help in the recovery process. It is always recommended to consult a healthcare professional to obtain an accurate diagnosis and personalized treatment.

Muscle Strain or Injury

Signs and symptoms:

  • Pain or tenderness in the armpit area
  • Swelling or bruising
  • Difficulty moving the arm
  • Weakness in the affected arm

It is essential to seek medical attention if you suspect that you suffer a muscle distension or a right armpit injury. A health professional will perform an exhaustive exam and may recommend diagnostic tests such as radiography or magnetic resonance to assess the scope of the lesion. Treatment options for muscle distensions or lesions usually include:

  1. Rice therapy: rest, ice, compression and elevation. This approach helps reduce pain, swelling and inflammation in the affected area.
  2. Analgesics: Free sales analgesics or prescription medications may be recommended to control pain and discomfort.
  3. Physiotherapy: An adapted exercise program can help strengthen the muscles, improve flexibility and help in the recovery process.
Precautionary measures Recovery time
Adequate warming and stretching before physical activities Varies depending on the seriousness of the injury, from a few weeks to several months
Use adequate lifting techniques Follow the instructions of the health professional for a gradual return to normal activities
Avoid repetitive movements that force the axila muscles Periodic monitoring appointments to control the necessary progress and adjustments of the treatment plan

Note: It is important to consult a healthcare professional to obtain a precise diagnosis and proper treatment. The information offered here has only informative purposes and should not be considered as a medical advice.

Shingles (Herpes Zoster): A Painful Rash Caused by Varicella-Zoster Virus

One of the characteristic symptoms of Herpes Zóster is a painful eruption that usually appears on one side of the body. The eruption consists of lesions similar to blisters that can open and form scabs. In addition to the eruption, people can experience other symptoms such as itching, tingling or burning sensation in the affected area. The pain associated with Herpes Zóster can be intense and weakening, often described as an acute or sharp sensation.

Important information about shingles:

  1. Herpes Zóster is caused by the reactivation of the Vecicela-Zóster virus, which remains latent in the body after a previous varicella outbreak.
  2. The most common symptom of Herpes Zóster is a painful eruption that usually appears on one side of the body.
  3. The eruption consists of lesions similar to blisters that can open and form scabs.
  4. Other symptoms can be itching, tingling or burning sensation in the affected area.
  5. Herpes Zóster can be extremely painful and cause complications such as postherpetic neuralgia, a chronic condition characterized by persistent nerve pain.

“Herpes Zóster is a painful disease caused by the reactivation of the varicel-zoster virus. It is important to seek medical attention and initiate proper treatment as soon as possible to relieve symptoms and prevent complications.”

Dermatitis or Allergic Reaction

There are several types of dermatitis, such as atopic dermatitis, contact dermatitis and seborrheic dermatitis. Atopic dermatitis is a chronic condition that usually appears in childhood and extends to adulthood. It is usually associated with a genetic predisposition to allergies and can be triggered by various irritants. Contact dermatitis, on the other hand, occurs when the skin comes into direct contact with an allergen or irritating and causes a localized inflammation. Finally, seborrheic dermatitis is characterized by red and scarce spots on the skin, which usually appear on the scalp, face and armpits.

  • Common symptoms of dermatitis include
    • Redness and inflammation of the skin
    • Itching and/or pain
    • Dry, squamous or peel skin
    • Blisters or suppuration of the affected area
    • Thickened skin

Dermatitis is usually caused by allergens, irritants or a combination of both. Allergic reactions may be due to exposure to specific substances, such as certain foods, medications or environmental factors. Irritants, meanwhile, can be aggressive chemicals, soaps, detergents and even excessive sweating. It is important to identify and avoid triggers to prevent the exacerbation of symptoms and provide relief.

  1. Dermatitis treatment options may include
    • Topical corticosteroids to reduce inflammation
    • Emollients and moisturizers to hydrate the skin
    • Antihistamines to relieve itching
    • Avoid known triggers
    • Use of soft and hypoallergenic soaps and detergents
Causes of dermatitis Symptoms of dermatitis
Exposure to allergens or irritating Redness and inflammation
Genetic predisposition Intense itching
Environmental factors Dry, squamous or peel skin

Overview of Breast Infection (Mastitis)

There are two main types of breast infections: mastitis of breastfeeding and mastitis not related to breastfeeding. Breastfeeding mastitis occurs in women who chest and is usually caused by bacteria that penetrate the breast tissue through a cracked or sore nipple. Bacteria multiply in galactoforos ducts and cause inflammation and infection. On the other hand, no n-infant mastitis can appear in women of any age and is usually associated with a weakened immune system or a underlying breast condition.

  • The most common symptoms of mastitis are:
    • Pain or tenderness in the breast, especially during breastfeeding.
    • Swelling and redness of the affected breast
    • Warm to the touch
    • A lump or hard area in the breast
    • Fever and chills

Note: It is important to seek medical attention if you experience symptoms of mastitis, as prompt treatment can help prevent complications such as abscess formation.

The diagnosis of mastitis is usually based on the clinical presentation and physical examination of the breast. In some cases, additional tests, such as a breast ultrasound or breast milk culture, may be done to identify the specific bacteria causing the infection. Treatment for mastitis usually involves a combination of antibiotics to fight the infection and measures to relieve pain and inflammation, such as hot compresses and over-the-counter pain relievers. It is also important to continue breastfeeding or pumping to help clear the infection and maintain milk production.

Key points to remember:
Mastitis is a condition characterized by inflammation and infection of the breast tissue.
It usually occurs in lactating women, but can also affect non-lactating women.
The most common symptoms are pain, redness, swelling, heat and fever in the breasts.
It is important to receive immediate medical attention to avoid complications.
Treatment usually includes antibiotics and measures to relieve pain and inflammation.

Axillary Lymph Node Enlargement

The increase in the size of the axillary lymph nodes can be due to various causes, from benign to more serious ones. A common cause is infection. When the body is fighting an infection, such as a bacterial or viral infection in the arm or breast, the lymph nodes in the corresponding underarm region may become swollen and tender. Infections can include cellulitis, breast infections, or even something as simple as a small cut or scratch on the arm that has become infected. In these cases, the enlargement of the lymph nodes is usually accompanied by other symptoms of infection, such as redness, heat and pain in the affected area.

Important information:

  • Enlarged axillary lymph nodes may be a sign of underlying disease and should not be ignored.
  • In some cases, axillary lymph nodes may not cause any symptoms and are only discovered incidentally during a physical examination or imaging tests.
  • If lymph node enlargement is persistent, progressively enlarges, or is associated with other concerning symptoms, further medical evaluation is necessary to determine the underlying cause.

Understanding Cysts and Lipomas: Causes, Symptoms, and Treatment

The cysts are sac k-shaped structures that are formed in body tissues, including the armpit. They are usually full of liquid, air or sem i-solid materials such as pus. The appearance of cysts may be due to the obstruction or breakage of ducts or glands. In the case of axillary cysts, they are usually caused by the obstruction of the sweat glands or the hair follicles. The size of the cysts can vary from tiny to large, and its appearance can vary depending on its content. They can be soft or firm to touch and can be mobile under the skin.

Important information:

  • The cysts in the armpit can cause pain or sensitivity, especially when pressure is applied.
  • They can be accompanied by swelling and redness in the affected area.
  • Sometimes, cysts can be infected, giving rise to the formation of an abscess.

Instead, lipomas are tumors composed of fatty tissue that develop just below the skin. Unlike cysts, lipomas do not contain liquid or remains. These benign tumors can be formed anywhere in the body, including the armpit, and are usually painless. Lipomas are usually soft and gummy to touch and can easily move under the skin when pressing them. They usually grow with time and can reach several centimeters in diameter. In general, lipomas are harmless, but some people may choose to remove them for aesthetic reasons or if they cause discomfort or affect mobility.

Important information:

  • Lipomas in the axillary zone are usually painful and do not cause sensitivity or redness.
  • They can increase in size with time, but their growth rate is usually slow.
  • Most lipomas do not require treatment, but surgical removal can be an option if desired.


Although both cysts and lipomas can manifest as painful or uncomfortable growth in the axillary zone, knowing their specific characteristics is crucial for precise diagnosis and proper treatment. The cysts are sac k-shaped structures full of liquid or sem i-solid material, often caused by the obstruction of sweat glands or hair follicles. They can be sensitive, be swollen and sometimes infected. On the other hand, lipomas are benign tumors composed of fatty tissue, which are usually painless, slow growth and can easily move under the skin. The surgical removal of lipomas usually considers for aesthetic or symptomatic reasons. It is essential to consult a medical professional to determine the exact nature of the condition and receive adequate orientation for effective treatment.

Author of the article
Dr.Greenblatt M.
Dr.Greenblatt M.
Medical oncologist at the Robert Larner College of Medicine, MD, at the University of Vermont

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