Most of the apparent vessels in the chest are just a mere revealing of the anterior chest vessels and have no pathological significance. There are two types of routine anterior chest vessels that are apparent: the first is a simple revealing of superficial veins. In this case, the vast majority of causes are due to increased pressure on the skin and subcutaneous tissues of the chest, such as in some menstruating or pregnant women, and this condition can be considered a normal physiological phenomenon. The second condition, which is less common, is a kind of tortuous expansion of the superficial veins due to the blockage of deep vein thrombosis around the thorax and within the chest, and the formation of collateral circulation. Common causes are upper extremity venous thrombosis, or superior vena cava obstruction syndrome. In some patients, blockage of the deep veins can lead to tortuous dilatation of the blood vessels in the head and neck and even in the chest, helping to return the flow and creating a significant vascularity in the chest. Clinically, the vast majority of cases are still due to physiological vascular obviousness, so patients need not worry. If there are clear symptoms, it is important to seek medical attention to clarify the cause.