Swollen vein on forehead? what does this mean? what should i do?

Usually not problem: Your physician can help clarify this but it may be your usual anatomy and not a medical issue You physician can clarify whether the vein is enlarged due to a blockage or not.

Positional change.: The veins in the face just as the veins in the rest of the body change in size depending on changes in position as well as changes in levels of hydration and changes in pressure in the chest and abdominal cavity. In the face, the veins decrease with standing and increase with lying down. Forehead veins can be treated by sclerotherapy.