Laser spider vein treatment is a non-invasive medical procedure that utilizes laser technology to reduce or eliminate the appearance of spider veins. Spider veins are small, twisted blood vessels visible on the skin's surface. They often occur in areas like the legs and face and can be caused by various factors such as genetics, hormonal changes, pregnancy, and prolonged standing or sitting. The heat produced by the laser spider vein treatment shrinks and closes the vein, leading to scar tissue formation within the vessel, thus reducing the appearance of the broken vein.