All articles in Upper Arm
An armpit lump, or axillary lump, is often caused by swollen lymph nodes in the armpit. This condition can also be associated with tenderness or pain in the lump under the arm. A small or pea-sized lump in the armpit can also be caused by a skin infection, like a cyst, or ingrown hair. Read below for more causes and treatments options.
Bumps on the upper arms are usually caused by common conditions such as skin cysts or pimples, though it's important to talk to your doctor to identify the cause and get the right treatment. Read more below to learn 9 possible causes of bumps on the upper arm.
Muscle weakness in your arms can have a number of causes, ranging from common conditions like a pinched nerve in the neck, to rarer conditions such as brachial plexopathy (shoulder nerve issue). Read more below to learn what may be making your arms feel weak.