Vascular dark circles are caused by stagnation of blood in the blood vessels around the eyes, i.e., poor circulation due to overuse of the eyes. Vascular dark circles are the most common type of dark circles, usually appearing greenish-brown or greenish-purple. For patients with thin skin around the eyes, very fine microvessels can also be seen. The formation of vascular dark circles is usually caused by poor blood circulation around the eyes due to excessive eye use. With excessive eye use, fatigue and aging, the fat and collagen under the skin will be further reduced, so vascular dark circles tend to appear together with tear troughs. For patients with vascular dark circles, they should avoid overuse of the eyes, and can be improved by hot compresses and massages. For patients suffering from vascular dark circles, it is recommended to go to regular hospitals for examination and improvement under the guidance of professional doctors.