Birthmarks are colored skin spots that either are present at birth or develop shortly after birth. Birthmarks can be many different colors, including brown, tan, black, pale blue, pink ...

Bluespotted ribbontail rays possess striking electric blue spots on their skin. However, the biological processes that produced these electric blue spots were a mystery until now. "If you see blue ...

“Fortunately, blue light is not associated with skin cancers, but it has been shown to lead to premature aging and the development of dark spots,” Zeichner says. Blue light can also break down ...

Mongolian blue spots happen when pigment cells make melanin under the skin’s surface. The reason the spots are blue is because of something called the Tyndall effect. The Tyndall effect involves ...

get “trapped” in the deeper layers of skin during the infant’s development. When the pigment does not reach the surface, it appears as a gray, greenish, blue, or black mark. Share on ...

Blue light can treat skin cancer Used in-office, blue light therapy can treat some kinds of skin cancer and precancerous spots called actinic keratoses, according to the Cleveland Clinic.

Stretch marks may be pink, red, blue, purple, or dark brown, depending on your skin color. They may appear as bright streaks or bands on the skin that fade to a lighter color. Sometimes stretch ...

So too much blue light can potentially worsen hyperpigmentation—overproduction of melanin leading to dark spots on the skin—especially in people with darker skin. Some research suggests blue ...

Bluespotted ribbontail rays possess striking electric blue spots on their skin, however, the biological processes that produced these electric blue spots was a mystery, until now. “If you see ...