Which of the following is a common risk factor for Deep Vein Thrombosis (DVT)?

Immobility is a significant risk factor for developing Deep Vein Thrombosis (DVT). When an individual is immobile, such as being bedridden or sitting for extended periods, blood flow in the veins can become sluggish. This reduced circulation allows for the formation of clots, as the risk of blood pooling increases in the lower extremities where DVT most commonly occurs.

Frequent exercise promotes healthy blood circulation and helps to prevent the stagnation of blood in the veins, thereby reducing the likelihood of clot formation. High water intake enhances hydration and can also support optimal blood circulation and venous health. A low body mass index is generally associated with a lower risk of developing DVT, as obesity is a known risk factor due to increased pressure on the veins. Hence, immobility stands out as the primary risk factor for DVT among the provided choices.