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What skin disorder is causing red, swollen, tender bumps in my armpits?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
A red, swollen, tender bump under your arm may be a cyst. A cyst is a pouch of tissue that may fill with fluid or pus. Cysts can form as a result of infection or clogged pores. Sometimes shaving the underarms or using antiperspirants can produce cysts. A tender lump in the armpit could also be an abscess, which is a mass under the skin filled with pus that usually causes pain and swelling. A lump under the armpit could be a symptom of a more serious condition, so it if persists, see a doctor.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.