The blood vessels in the arms of girls are obvious, and there is no need to be nervous about this situation. If women are thin and have white skin, the blood vessels in the arms will be obvious due to the reduction of subcutaneous fat and thin skin along with lighter skin color, so there is no need to worry about this situation and further examination and treatment. Many people think whether the appearance of such obvious blood vessels means that varicose veins will appear, but the current medical evidence shows that there is no possibility of varicose veins in the arm because the arm is closer to the heart and there is no basis for varicose veins, so there is no need to worry about this.