What happens if a blood clot goes untreated?

If a blood clot, specifically a deep vein thrombosis (DVT), goes untreated, it can lead to serious health complications. One of the most concerning risks is the potential for the clot to dislodge and travel to the lungs, causing a pulmonary embolism (PE). A PE can obstruct blood flow in the lungs, leading to symptoms such as sudden shortness of breath, chest pain, and in severe cases, it can be life-threatening.

Medical literature highlights that untreated DVTs can also lead to long-term complications such as post-thrombotic syndrome. This condition is characterized by chronic pain, swelling, and in severe instances, skin ulceration in the affected limb due to damaged vein valves.

Clinicians typically look for symptoms of DVT including unilateral leg swelling, pain, and redness. They also consider risk factors such as prolonged immobility, recent surgery, and personal or family history of blood clots when evaluating a patient's condition. Anyone with concerns about potential blood clots should discuss their specific situation with their healthcare provider.