深靜脈血栓形成是指腿深靜脈中的血凝塊形成和血流阻塞。 在長途旅行中乘坐公共汽車，火車或飛機後，可能會發生這種情況。
Deep vein clot formation refers to the clot formation and blood flow obstruction in the deep veins of the legs. This can happen after taking a bus, train or plane on a long journey.
