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This is a very difficult question to answer. There are many things that could cause a painful bump or lump underneath the skin in your armpit. It could be an infection, a swollen lymph node, a bacterial infection if you shave your armpit, a fatty growth, cancer or any number of things. Here is a useful website at the National Library of Medicine website Medlineplus on armpit lumps
http://www.nlm.nih.gov/medlineplus/ency/article/003099.htm
The best answer to this is to please try to see a doctor or nurse or get to a health center. Treatment will depend on which of the many relatively harmless or serious conditions that could be causing this bump or lump.
Medical Librarian
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoA pimple, mosquito bite, ingrown hair, or cyst.
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What is a round quarter size bump on top of head that doesn't move or doesn't hurt a child?
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Make sure its not an ingrown hair, or go see a doctor. Could be a very poisonous spider bite. just keep an eye on it...
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it looks like a bump on ur bak about the size of a golf ballit looks like a bump on ur bak about the size of a golf ball
What products does the company Bump Band produce?
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Should you be concerned if you were hit on the side of the head yesterday and now you have headaches and a hard painful bump about the size of a quarter above your left ear and what could it be?
If you are sensitive to light and sound, and have blurred vision, you need to go to the hospital. You may have a concussion.
What is the size of a quarter section?
A quarter section of "anything" is one forth of the whole.
