When a woman in Russia noticed a small lump under her left eye, she snapped a selfie to document the unusual bulge. Then, something even stranger happened: The lump moved. In a series of selfies, the ...

Nodular acne is a painful, severe form of inflammatory acne that forms hard lumps under your skin. You can use prescription-strength medications like isotretinoin to treat nodular acne effectively. If ...

Painful bump with no head? Learn what blind pimples are, why they hurt, and the dermatologist-approved ways to treat and prevent them—fast.

Q: I developed a lump under the skin of my neck that my doctor said was a kind of tumor, a lipoma. She said it was benign and we can just watch it and do nothing. Does that sound right? A: Lipomas are ...

Most people believe breast cancer begins with a lump, that can be felt, or is visible. And while that is somewhat true, the ...