Glossary term
Deep Vein Thrombosis (DVT)
Reference only — not medical advice. See disclaimer.
The formation of a blood clot (thrombus) within a deep vein, most commonly in the calf or thigh, which may cause pain, swelling, and redness in the affected limb. DVT is a significant risk after surgery and prolonged immobility during travel, and carries the potentially life-threatening complication of pulmonary embolism if the clot dislodges.