Exposed veins on the back of the hand are varicose veins, if they are physiologic they do not need to be treated, if they are caused by thrombosis they need to be anticoagulated. 1. Some people who are weak or engaged in physical labor for a long time may have exposed veins on the back of the hand, because the subcutaneous fat on the back of the hand of this kind of people is less, so the veins are more likely to appear, especially when the labor force will appear the veins of the ripples, in addition to the long term fitness athletes may also appear. 2. Some patients with deep vein occlusion due to thrombosis will have expansion of superficial veins, that is, we can see the veins bulging, then we need to give anticoagulant drugs to relieve the problem of obstruction in time, commonly used warfarin, rivaroxaban and so on. The medication should be administered under the guidance of a doctor, and should not be used without authorization. The back of the hand exposed bruises are also seen in other causes, should promptly consult a doctor, under the guidance of a professional doctor standardized treatment, so as not to delay the condition.