In the context of heart health, what is a common symptom of deep vein thrombosis (DVT)?

Swelling in the legs is a common symptom of deep vein thrombosis (DVT) because DVT occurs when a blood clot forms in a deep vein, usually in the legs. This clot can block blood flow, leading to an accumulation of fluid in the surrounding tissues, resulting in noticeable swelling. Other symptoms of DVT may include warmth, redness, and pain in the affected leg, but swelling is particularly characteristic as it signifies that the normal flow of blood has been disrupted.

In terms of other symptoms, while chest pain, shortness of breath, and a rapid heartbeat could indicate various cardiac or vascular issues, they are not direct symptoms of DVT. Chest pain and shortness of breath are more closely associated with conditions like pulmonary embolism, which can occur if a DVT clot travels to the lungs. Therefore, swelling in the legs is the most direct symptom related to the presence of deep vein thrombosis.