Varicose veins, when they worsen, can lead to changes in the skin, including thickening of the skin which feels woody to the touch. Additionally, the skin may exhibit pigmentation that can be severe enough to resemble the black color of a belt. More seriously, ulcers can develop, typically near the inner ankle, though they occasionally appear in other locations. These ulcers are referred to medically as “boot ulcers” and are commonly known among the general population as “continuous sore legs.” In extreme cases, these ulcers may persist for many years without healing and could potentially become malignant.