Hand veins may be related to physiological reasons such as less adipose tissue, or pathological reasons such as varicose veins. 1. Physiological reasons: such as the elderly or thin people, their fat tissue will be less, may reveal the veins, can be manifested as the hand burst veins, which is a normal physiological phenomenon. 2. Pathological reasons: if the hand of the venous valve insufficiency, may lead to venous return obstacles, so that the venous blood stagnation in the blood vessels, can be manifested as the symptoms of hand bruises. It is recommended to go to the regular hospital in a timely manner, clear causes, such as the need for treatment, should be standardized under the guidance of the doctor, so as to avoid delays in the condition of the body to bring about adverse effects.