After having surgery for deep vein thrombosis, why does the leg swell?

Bad valves. One of the things that can occur following a DVT is called post-thrombotic syndrome. Pts is when some of the valves in the deep vein are destroyed and then allow the blood to flow the wrong direction in the vein. You will want to see a physician well versed in the treatment of venous disease for evaluation of pts as many docs and ultrasound techs will miss this complication of dvt.
DVT. The DVT resulted in blockages to the blood flow in your entire venous system on the affected leg so that blood is unable to flow back towards the heart properly. This is causing fluid to accumulate in the lower leg. Talk with your clinicians about proper measures to keep the swelling down.
Valve damage. It probably wasn't the surgery that caused the swelling but was damage done to the valves by the dvt, as dr. Hansen mentioned. Pts consists of pain and swelling after a DVT and is often accompanied by brownish skin discoloration. Pts can sometimes end with venous leg ulceration. Wearing knee high 30-40 mmhg graduated compression stockings has been shown to decrease the risk of pts after a dvt.

Related Questions

When would deep vein thrombosis symptoms start, after surgery? 2 months after laparascopy and getting a lot of pain in right leg, feels heavy,

Usually sooner but.. ...A deep vein thrombosis (DVT) can occur many weeks after surgery so it must be considered. Read more...
Within days. Acute deep venous thromboses (dvts) usually occur within days of surgery. In fact the most common time for dvts to form is on induction of general anesthesia for surgery and, in your case with laparoscopic surgery, gas insufflation of the abdomen is a risk as well. This doesn't mean, however, that you can't have an acute DVT 2 months from surgery. I would recommend an immediate evaluation. Read more...

Should I worry about swelling of 1 ankle & it feeling achy? It's hot where I live. I've been treated for deep vein thrombosis in past with surgery.

You might... Although with the heat, there tends to be some degree of swelling associated with that, your history of DVT (deep vein thrombosis) and 1 sided swelling (particularly if it is the side you had the dvt) is a bit of a concern. If you haven't been followed up with recent doppler (ultrasounds) by your doc, you should consider having it checked. Read more...
See a doctor. Your description has concern, you should see a doctor for exam. Read more...
Dvt. i would recommend evaluation with venous doppler sonogram.the heat issue is not responsible for swelling of one ankle, as that would affect both ankles. Read more...