CALF:
Pain, one of the lesser-known dangers is deep vein thrombosis (DVT), a blood clot that can occur in the leg’s deep veins, and it can be life threatening. The danger is that a piece of the clot could break loose and cause pulmonary embolism [a clot in lungs]. Sometimes there’s just swelling without pain, if you have swelling and pain in your calf muscles, see a doctor immediately.
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