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. Spider ...

Benign hereditary telangiectasia (BHT) occurs when small thread veins have dilated and are visible on the skin and lips. On dark skin, these veins may appear purple. On light skin, they may look red.

Thread veins – often referred to as spider veins - are minuscule yet prominent veins found slightly under the skin’s surface. These veins tend to branch out into a spider-like pattern, hence their ...