What are the Most Common Causes of Swelling Under the Arm?
A swollen armpit can be caused by a number of conditions, ranging from mild to serious. This is because the lymph nodes located under the arms can swell up due to infection, injury, or serious diseases. In fact, one of the most common causes of swelling under the arm is an infection, as many areas of the body drain into the lymph nodes in this area. Surface injuries or allergies to certain products, such as deodorant, can also result in swelling.
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