👉 Background veins are small, thin veins that run beneath the skin and are usually not visible due to their close proximity to the surface. They are formed during fetal development and are present even in adults, though they may become more noticeable with age or certain medical conditions. These veins are often found in areas like the neck, wrists, and ankles, and can sometimes be mistaken for superficial veins. Background veins can be a sign of underlying venous insufficiency or other circulatory issues.
