In most cases, varicose veins are not painful on touch. However, if they are painful when pressed, there are several possibilities. One is that there is an obstruction at the proximal end of the varicose vein, which is closer to the heart. This results in high local tension in the varicose vein, and pressing on it can stimulate the nerves in the surrounding membrane, causing pain on touch. Another possibility is that a blood clot has formed inside the varicose vein. The formation of blood clots is often accompanied by some sterile inflammation. When there is inflammation, symptoms can include redness, warmth, pain, and localized heat. Pressing on such an area can intensify the pain. Additionally, it is particularly important to emphasize that if varicose veins are painful on touch, one must visit a hospital and not press on them themselves. If there is a blood clot, pressing it could dislodge the clot, causing it to travel to the lungs and lead to a pulmonary embolism.