Ankle Swelling can arise from 6 documented medical conditions. Understanding the clinical context helps identify urgent causes early.
Seek emergency care immediately if ankle swelling is accompanied by severe or sudden onset symptoms.
Gout
Gout is a form of inflammatory arthritis caused by elevated uric acid levels (hyperuricemia) that form crystals in joints. It causes sudden, severe attacks of pain, swelling, redness, and tenderness, most often in the big toe.
Heart Failure
Heart failure occurs when the heart cannot pump enough blood to meet the body's needs. It is a chronic condition that causes fatigue, shortness of breath, and fluid retention (edema). It requires ongoing medical management.
Peripheral Artery Disease
Peripheral artery disease (PAD) is caused by atherosclerosis narrowing the arteries supplying the legs, causing claudication (leg pain with walking), poor wound healing, and increased cardiovascular risk.
Deep Vein Thrombosis (DVT)
Deep vein thrombosis is a blood clot forming in a deep vein, usually in the legs, causing swelling, pain, and redness. The greatest danger is pulmonary embolism if the clot breaks off and travels to the lungs.
Pulmonary Embolism
Pulmonary embolism is a life-threatening blockage of the pulmonary arteries, usually by clots from deep vein thrombosis. Sudden shortness of breath, chest pain, and rapid heart rate are classic presentations requiring emergency treatment.
Pulmonary Hypertension
Pulmonary hypertension is elevated pressure in the pulmonary arteries, causing progressive exertional dyspnea, syncope, and right heart failure. It is classified into five groups based on etiology; targeted therapies improve outcomes in pulmonary arterial hypertension.
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