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Date of last update: 10/18/2017.

Forum Name: Dermatology Topics

Question: Lump under my armpit

 kerr70 - Mon Sep 21, 2009 9:43 pm

Hi, i'm a 22 year old male.

Just over a week ago i developed 2 pea sized lumps under my right armpit. These are extremely sore and i'm struggling to put my right arm down, due to the pressure and pain that its causing me.

There is no rash and the lumps have no head and do not move when i apply pressure with my finger.

Any thoughts on what this may be?...
 Debbie Miller, RN - Wed Oct 07, 2009 3:22 pm

User avatar Hello,
You could have an infected sebacious gland, hair follicle, or boil. Boils are abscesses caused by a bacteria and can result in a sore lump. As your body sends white blood cells to fight the infection, pus often is the result and a "head" may form.

Try using warm, moist compresses to help the blood flow to the area. Most of these skin irritations do resolve on their own but sometimes if infection is present, they must be lanced. This should be done by your health care provider and sometimes antibiotics are prescribed along with it.

These would be the most likely causes but if they persist in spite of hot packs and time, see your doctor.

Best wishes.

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