Varicose veins are a broad concept that is clinically divided into seven grades, from 0 to 6. Grade 0 is normal, grade 1 involves some capillary dilation, grade 2 is marked by clear varicose veins, and from grade 3 onwards, edema can occur. Generally, the causes of varicose veins vary. Some people suffer from what is called simple superficial varicose veins, primarily due to problems with the valves in the superficial veins. These patients may experience mild edema, limited to the ankle area. Others suffer from secondary varicose veins, following dysfunction of the valves in the deep veins or communicating veins. In deep veins, there can be reflux or obstruction. In such cases, it is possible to cause compressible edema in the front of the lower leg, commonly known as shinbone area.