Spider veins, also known as telangiectasias or thread veins, resemble spider webs or tree branches. They occur when damage to blood vessels close to the skin's surface causes them to widen.

Though generally harmless, hair-thin blemishes, known as spider veins, can cause some to want to cover up even in the heat. Treating spider veins is rarely a medical necessity (though some seek ...

As a curious child, you might remember staring at an older relative's thick stockings at the blue, gnarled veins lying under the skin like bumpy snakes. Known as varicose veins, these blood ...