The Legacy of NBC's David Bloom: Remembering the Dangers of Deep Vein Thrombosis.

David Bloom, a war correspondent, died due to a complication from deep vein thrombosis (DVT) caused by a blood clot that traveled to his lungs. His family established March as National DVT Awareness Month to spread awareness about the condition. DVT occurs when a blood clot forms in a deep vein, usually in the lower leg, thigh, or pelvis, and can lead to long-term problems such as pain, swelling, and leg sores. Risk factors include injury to a vein, slow blood flow, increased estrogen, and chronic illness. Symptoms may include swelling, pain, tenderness, and skin redness. Prevention includes getting up and moving regularly, doing calf exercises and foot pumps, and wearing compression stockings if you've had blood clots before.