Blood which flows form the heart to the leg is pumped back to the heart from the muscles in the leg. When we are sitting for prolonged periods the blood remains in the leg and is not pumped back. the persistent blood in the leg does cause mild swelling of the ankle. this is a normal and more prominent in women and hence nothing to worry about . If the swelling persists even when walking or standing or in case there is major swelling then it requires further evaluation. Hope this helps reduce some of your anxiety. Sharath
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