Freckles are often caused by variations in a particular gene that affects melanin. They are common and usually harmless. If you have concerns about any marks on your skin, consult a dermatologist for ...

Freckles and sebaceous filaments can both look like brown or dark spots on your skin, but they have very different causes and characteristics. Your skin can develop a variety of lumps, bumps, and ...

You’ve got a new brown spot on your face, but is it a freckle or a sunspot? Or perhaps you’ve found a spot on your back that looks like a mole but is flatter than your other ones – is it a mole or a ...