It could be an infection, a vaccine response, or an autoimmune disease symptom, per experts.

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, but it can ...

There are few worse feelings than an itch you can't scratch—especially when it's unexplained and in an inconvenient place like your armpit. But alas, it happens—and while you might be eager to try out ...

Right-sided pain under the armpit may be due to muscle strain, infections, or skin conditions. Sometimes, armpit pain may indicate a more serious issue, such as cancer or a heart issue. The armpit ...

What Causes a Rash in Your Armpit? An armpit rash is more common than you might think. Your armpits probably come into contact with more chemicals each day than most other parts of your body. Don’t be ...

Many over-the-counter creams work best for some armpit rashes. Contact dermatitis on your armpits is caused by exposure to skin irritants or allergens. Shaving can cause folliculitis, which looks like ...

Rashes are pesky patches of irritated skin that can affect any part of your body, including your armpits. Typically, armpit rashes aren't dangerous, but they can certainly be uncomfortable and range ...

There are few worse feelings than an itch you can’t scratch—especially when it’s unexplained and in an inconvenient place like your armpit. But alas, it happens—and while you might be eager to try out ...

Hidradenitis suppurative occurs in areas with hair follicles where skin rubs together, so the armpits are frequently affected. Hidradenitis suppurative (HS) is a chronic condition that causes painful ...

Itchy, irritated armpits? You're not alone. It's a complaint that dermatologists hear often. That's because the armpit, also known as the axilla, is notoriously prone to irritation and other issues.