Sudden swelling in one leg (not both)
Pain or tenderness, often starting in the calf
Warmth and redness over the affected area
Visible, engorged veins
Urgent: DVT is a medical emergency.
If the clot breaks loose, it can travel to the lungs, causing a pulmonary embolism — a potentially fatal condition.
👉 Seek immediate medical help if you experience these symptoms.
4. Congestive Heart Failure (CHF)
What it is:
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