Deep vein thrombosis is a blood clot in a deep vein, usually in the leg. Swelling, pain, warmth or a change in colour should be assessed promptly.
Why it needs attention
A clot can sometimes travel to the lungs. Sudden breathlessness, chest pain or coughing blood requires emergency medical help.
Need advice about your symptoms?
A consultation can help confirm the diagnosis and decide the next step.
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