Varicose veins can sometimes cause localized pain, and there are several reasons for this pain.

One reason is the formation of blood clots in the varicose veins, which can cause very obvious pain. Additionally, the affected area feels harder, not soft. When we say soft, it's like the softness of one’s lips; if it feels like the tip of the nose or the forehead, then it's considered very hard. In such cases, it indicates that the vein is not empty but contains a solid blood clot, which can cause pain.

Another situation is if there is poor venous return in the proximal segment, causing the veins to fill significantly in a short time. This can also pull on the nerves outside the vein wall, leading to a sensation of pain.