Cysts (fluid-filled tissue pockets), infections, and swollen lymph nodes commonly cause armpit lumps. You may see a ...

If you’ve ever experienced swollen lymph nodes, you know how uncomfortable (and temporarily concerning) their presence can be. After all, when lymph nodes—small, bean-shaped glands throughout your ...

A swollen lymph node can be a bit like your body’s version of a red flag: When one of these bean-shaped clusters of immune cells in your neck, armpit, or groin puffs up, it’s typically an indication ...

When my twin sister got the first dose of the Pfizer-BioNTech COVID-19 vaccine at the end of December, she kept noting that her armpit felt swollen. It was similar to the soreness experienced with an ...

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 ...

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 ...

Cancer Research UK explains: "You can't usually feel the lymph glands in your body. But they can become swollen when you have ...