Medically reviewed by Marla Anderson, MD Cysts (fluid-filled tissue pockets), infections, and swollen lymph nodes commonly cause armpit lumps. Finding a lump in your armpit can be worrisome, ...

Common symptoms of mono include fatigue, fever, sore throat, headache, body aches, and swollen lymph nodes in the neck and ...

Armpit pain is a common complaint that can have many causes, from mild muscle injuries to swollen lymph nodes and severe skin infections. In most cases, armpit pain isn't a reason to worry ...

Cancer Research UK identifies "a new lump" or "thickening" in the armpit as a symptom to watch out for, which can be caused by swollen lymph nodes. The charity explains that lymph glands are ...

Pain under the left armpit may result from muscle damage or swollen lymph nodes due to an infection. However, it can also indicate a more serious problem, such as cancer or angina. The armpit is a ...