When varicose veins rupture and cause bruising, if the area is small, it may be absorbed on its own. If the area is large, or if there is a certain degree of fluid accumulation, this fluid can potentially lead to infection, especially if the patient has diabetes or is using steroids, which may cause the accumulated blood to become infected. Additionally, after the absorption of a bruise, some patients may experience local pigmentation. This occurs because the iron-containing hemoglobin from metabolized red blood cells remains in the area, leading to a change in color. In severe cases, if the discoloration recurs, it may darken, and further development in some people might result in the skin becoming rougher and potentially ulcerating.