When varicose veins are mild in their early stages, if you wear compression stockings during winter, it's possible that the varicosities are not very noticeable occasionally when you take off the stockings. However, in more advanced stages, when there are clearly widespread and clustered varicose veins, they are difficult to conceal.

However, if deep vein thrombosis occurs, causing tissue edema, the swollen surrounding tissues may obscure the varicose veins, making them less visible. Therefore, we need to judge based on the specific circumstances. Generally, just because varicose veins are occasionally not visible does not mean that the condition has healed.