The so-called varicose veins are caused by blood circulation blockages, which likely refers to local thrombus formation, leading to feelings of congestion in lower limbs, or caused by compression from above, such as tight clothing, exacerbating the obstruction of blood flow. This might result in increased surface tension of varicose veins in the lower extremities. Additionally, there might be some pain upon pressing, or even spontaneous pain.

In such cases, differentiated treatment is required. For instance, if the issue is due to compressive clothing, like tight-knee socks or pants legs that are too tight, simply relieving the pressure should suffice.

However, if a thrombus has formed causing increased local tension, pressing or massaging must be strictly avoided, as there is a risk the thrombus might dislodge and potentially lead to pulmonary embolism.