Armpit irritation and pain can be uncomfortable and frustrating to deal with. There are several common causes of armpit irritation and pain that range from harmless to potentially serious conditions.

Understanding these causes can help you identify and address the underlying issue. In this article, we will explore the most common culprits behind armpit irritation and pain.

1. Contact Dermatitis

Contact dermatitis occurs when your skin comes into direct contact with an irritant or an allergen. Common irritants that can cause armpit irritation include certain deodorants or antiperspirants, soaps, and chemicals in laundry detergents.

Allergic reactions to metals, such as nickel in jewelry, can also lead to contact dermatitis in the armpit area.

2. Razor Burn

Razor burn is a common cause of armpit irritation and pain, particularly in individuals who shave their underarms frequently. It occurs when the skin is irritated by improper shaving techniques, dull blades, or harsh shaving products.

Razor burn can result in redness, itching, and even small bumps or blisters in the armpit area.

3. Hidradenitis Suppurativa

Hidradenitis suppurativa is a chronic skin condition that causes painful, inflamed bumps to develop in areas rich in sweat glands, such as the armpits. These bumps can rupture and lead to abscesses or tunnels under the skin.

Hidradenitis suppurativa is typically a long-term condition and may require medical intervention for effective management.

4. Folliculitis

Folliculitis occurs when hair follicles become infected or inflamed. In the armpit area, this condition can manifest as small, red bumps that may be itchy or painful.

Bacterial or fungal infections, as well as ingrown hairs, can contribute to the development of folliculitis in the armpits.

5. Poor Hygiene

Poor hygiene practices can cause armpit irritation and pain due to the buildup of sweat, bacteria, and dead skin cells.

Insufficient washing or infrequent clothing changes can lead to a condition known as intertrigo, characterized by red, raw skin in the armpit folds. Maintaining good hygiene habits, including regular bathing and clean clothing, can help prevent this type of irritation.

6. Allergic Reactions

Some individuals may experience allergic reactions in the armpit area due to various triggers.

Allergens like certain fabrics, laundry detergents, body sprays, or fragrances in deodorants can cause localized allergic reactions, resulting in itching, redness, and pain.

7. Stress Sweat

Stress sweat is different from regular sweat produced during physical activity. It is released from different sweat glands and contains different compounds that can contribute to armpit odor and irritation.

Stressful situations can trigger stress sweat production, which may lead to discomfort and inflammation in the armpits.

8. Eczema

Eczema is a chronic skin condition characterized by dry, itchy, and inflamed skin. While it commonly affects the hands, it can also occur in the armpits. Eczema flare-ups in the armpit area can be triggered by irritants, allergens, or even stress.

Proper skin care, moisturizing, and avoiding triggers can help manage eczema-related armpit irritation.

9. Lymphadenitis

Lymphadenitis refers to the inflammation of the lymph nodes. When lymph nodes in the armpit become swollen and tender, it can cause discomfort and pain in the area.

Infections, such as bacterial or viral infections, are often the underlying cause of lymphadenitis. In some cases, the swollen lymph nodes may also be a sign of an underlying health condition that requires medical attention.

10. Hidradenitis Suppurativa

Obesity.

Obesity is a risk factor for many health conditions, including armpit irritation and pain. Excessive weight can lead to increased skin folds in the armpit area, promoting friction, sweat accumulation, and the development of intertrigo.

Proper weight management, regular exercise, and maintaining good hygiene can help reduce the risk of armpit irritation caused by obesity.

The Bottom Line

Armpit irritation and pain can have various causes, ranging from mild to more severe conditions. Identifying the underlying cause is crucial for appropriate treatment and management.

If you experience persistent or severe symptoms, it is recommended to consult a healthcare professional for a proper diagnosis and guidance.