The blood vessels on the chest are obvious, mainly divided into two cases, one case is the normal physiological performance, and the other case is the compensatory change caused by other diseases. 1.Physiological performance: mainly caused by the anatomical characteristics of the superficial veins on the chest wall, such as the skin is more delicate, the skin is thinner, the subcutaneous fat tissue is relatively less, and the position of blood vessels is more superficial, so the blood vessels on the chest will be revealed very clearly, especially For some thin, tender skin, fitness or breastfeeding and pregnant women, the blood vessels will look more obvious, this situation is normal and does not require drug or surgical treatment. 2, lesions caused by: common vena cava obstruction, due to superior vena cava obstruction blood flow restriction, the superficial veins of the chest wall appear compensatory side branch circulation establishment, resulting in the chest vessels will be more obvious. There is also a condition in which the tortuous and dilated vessels of the abdominal wall in portal hypertension can cause compensatory secondary dilatation of the suprathoracic vessels. Therefore, when there is a suspicion that there is an obvious problem with the suprathoracic vessels, you can consult an outpatient specialist and choose the appropriate treatment plan under the guidance of the specialist.