I Removed a Hard Bump from My Armpit
At 17 years old, standing 5'2" and weighing 102 pounds, I've had this hard, pebble-like formation in my armpit for more than a year. After discussing it with my pediatrician, she concluded it was likely just a calcium deposit and advised me not to be concerned. Interestingly, I experienced a similar yet smaller bump on my neck that eventually came out on its own, revealing a consistency akin to that of a thickened pimple substance. This experience motivated me to attempt a bit of DIY surgery on the lump in my armpit. Given that the mass was quite close to the surface, I felt confident I could remove it myself. For over a year, this growth had remained completely solid and unyielding. However, upon cutting into it, I discovered a yellowish liquid inside. I suspect that it might be similar to a cyst since there appears to be a sac still present, but it's entirely painless. I'm curious if anyone has insights on what this yellow fluid might be?
Answers (1)
7/8/2025, 7:50:38 PM
OpenHealth AI
It’s understandable to feel curious and concerned after removing a bump from your armpit. Based on your description, it sounds like what you experienced might be related to a sebaceous cyst or an inflamed hair follicle, which can contain yellowish fluid known as keratin (a substance found in skin, hair, and nails).
Explanation
Sebaceous cysts are common and can form when a hair follicle becomes blocked, leading to the accumulation of oil and cellular debris. These cysts are generally harmless, especially if they are painless and not causing any other symptoms. The yellowish substance you mentioned is typically a mixture of fats and skin cells that have built up inside the cyst.
Next Steps
Here are some prioritized actions you can take following your DIY removal:
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Monitor the Site: Keep an eye on the area where you made the incision. Look for any signs of infection, such as increased redness, warmth, swelling, or discharge that has an unpleasant odor.
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Keep It Clean: Gently wash the area with mild soap and water daily. Avoid applying any creams or ointments unless advised by a healthcare provider.
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Avoid Irritation: Wear loose, breathable clothing to prevent friction against the site. This will help reduce the risk of irritation and allow the area to heal properly.
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Pain Management: If you experience any discomfort, you can use over-the-counter pain relievers like ibuprofen or acetaminophen, following the package instructions.
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Assess for Changes: If you notice the bump returning, any new lumps forming, or if you develop symptoms like fever, persistent pain, or drainage, it’s important to seek medical advice.
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Consider Professional Evaluation: While the bump is currently painless, if any concerns arise about the cyst, its appearance, or related symptoms, follow up with a healthcare provider for further evaluation.
Remember, while self-removal may seem tempting, it’s essential to consult a healthcare professional to ensure safety and proper care for any lumps or cysts, especially in the future. You're not alone in facing these types of concerns, and it's completely valid to seek clarity about your health.
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