An armpit abscess, also known as an infected cyst or skin abscess, is a painful condition that develops when bacteria infect blocked skin glands or hair follicles. The armpit (underarm) is a common area for this problem because it is warm, moist, and prone to friction.
The images above show different stages of armpit abscesses, including swelling, redness, pus formation, and active infection. These conditions should not be ignored, as they can worsen without proper medical care.
What Is an Armpit Abscess?
An armpit abscess is a collection of pus trapped beneath the skin. It often begins as a small, tender lump and gradually grows larger, more painful, and inflamed.
Abscesses in the armpit may develop from:
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Infected hair follicles
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Blocked sweat glands
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Epidermoid or sebaceous cysts
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Minor skin injuries that allow bacteria to enter
Common Causes and Risk Factors
Several factors increase the risk of developing an armpit abscess:
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Excessive sweating
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Shaving or waxing the underarm
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Friction from tight clothing
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Poor hygiene
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Ingrown hairs
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Weak immune system
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Diabetes
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Repeated skin irritation
Once bacteria enter the skin, the body reacts by producing pus, leading to swelling and pain.
Signs and Symptoms
An armpit abscess often shows the following symptoms:
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A painful, swollen lump under the arm
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Redness and warmth around the area
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Firm or soft swelling
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Pus-filled center (white, yellow, or green discharge)
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Shiny or stretched skin
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Bad odor from drainage
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Fever or fatigue in severe cases
The images demonstrate advanced infection, where pus and inflammation are clearly visible.
Why Armpit Abscesses Are Serious
If left untreated, an armpit abscess can cause complications such as:
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Spread of infection to nearby skin (cellulitis)
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Larger abscess formation
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Permanent scarring
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Recurring infections
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Deep tissue damage
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Rarely, bloodstream infection
Early treatment greatly reduces these risks.
Proper Treatment Options
1. Medical Drainage
A healthcare professional may safely open and drain the abscess using sterile equipment. This relieves pressure and removes infected material.
2. Antibiotic Treatment
Oral or topical antibiotics may be prescribed to control bacterial infection.
3. Surgical Removal (Recurrent Cases)
If abscesses keep returning, complete removal of the cyst or affected gland may be necessary.
4. Supportive Care (Mild Cases Only)
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Warm compresses (10–15 minutes, several times a day)
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Keeping the area clean and dry
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Avoiding friction and pressure
⚠️ Never squeeze, pop, or drain an abscess at home. This can worsen infection and cause scarring.
When to See a Doctor Immediately
Seek medical attention if:
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The lump grows quickly
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Pain becomes severe
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Redness spreads
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Fever develops
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Pus continues to drain
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The abscess keeps returning
Prompt medical care leads to faster healing and better outcomes.
Prevention Tips
To reduce the risk of armpit abscesses:
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Maintain good hygiene
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Keep underarms dry
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Avoid tight clothing
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Shave carefully or avoid shaving irritated skin
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Treat ingrown hairs early
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Avoid picking or squeezing skin bumps
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Follow medical advice for recurring infections
Final Thoughts
Armpit abscesses and infected cysts can be painful and distressing, but they are treatable with proper medical care. Recognizing early signs and avoiding self-treatment are key to preventing complications.
If you notice swelling, redness, pain, or pus in the underarm area, consult a healthcare professional rather than attempting home drainage.
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