The lymphatic system is a crucial part of your immune system. Through a network of hundreds of lymph nodes, it drains fluid called lymph to be transported back into your bloodstream. It also removes ...

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What happens when tattoo ink is injected into your skin? Most of it remains firmly lodged there, but some pigments travel to lymph nodes or even destinations in your body that are farther afield. All ...

Laurencia Villalba is a vascular surgeon in private and public practice. Alison Tomlin and Theresa Larkin do not work for, consult, own shares in or receive funding from any company or organization ...