Venous dilatation and varicose veins are different clinical manifestations and are easily confused. Veins are particularly pronounced in patients with paler skin and thinner skin, less subcutaneous soft tissue, relatively weaker support for blood vessels, and more visible blood vessels, which are clinically visible. Varicose veins are only considered to be visible if the diameter of the blood vessels visible to the naked eye on the leg exceeds 3mm, along with significant tortuosity of the vessels. If the diameter of the vessel does not reach 3mm or reaches 3mm but there is no tortuosity, it can only be considered simply as dilated veins. There is also a clear difference in the management of dilated veins and varicose veins. Dilated veins tend to be physiological, such as when standing for a long time or recently doing heavy work with weight bearing, the veins on the feet will be more visible. When patients hang their hands down for half a minute or a minute they can see the blood vessels bulge significantly, i.e. the veins are dilated. However, if the blood vessels on the feet are curved and bent, and the curved blood vessels on the feet are also present after sleeping, then varicose veins should be considered.