About Swollen Legs
Have you noticed lately that your socks are tight and your pants feel snug? Your legs swell for two main reasons:
Fluid buildup (edema): It happens when the tissues or blood vessels in your legs hold more fluid than they should. This can happen if you simply spend a long day on your feet or sit for too long. But it may also be a sign that you’re overweight or don’t get enough exercise, or of more serious medical conditions.
Inflammation: It happens when the tissues in your legs get irritated and swollen. It’s a natural response if you break a bone or tear a tendon or ligament, but it also may be a sign of a more serious inflammatory illness, like arthritis.
Deep vein thrombosis (DVT) and thrombophlebitis: If you have DVT, it means there's a blood clot in a vein in your leg. It could break off and travel to your lung. When that happens, it's called a pulmonary embolism, and it can be life-threatening.
In thrombophlebitis, also called superficial thrombophlebitis, clots form closer to the surface of the skin and aren't likely to break off.
One of the first symptoms of DVT or thrombophlebitis is one swollen leg (especially the calf), as blood pools in the area.
Leg pain, tenderness, or cramping
Skin that's tinged red or blue
Skin that feels warm