What happens if you don’t treat a blood clot in your legs?

Stroke risk. Clots can travel andcause interruption in lungs creates embolism, for certain people stroke or heart ischemia.
Travels, or not. It can travel to lungs and kill you- worst scenario. Could "resorb" and recanalize with time so you have no issues. Could cause all sequelae of venous insufficiency- swelling/ discoloration/ ulcers etc of your legs. Treatment with blood thinners helps prevent propagation/ extension of clot, and these other issues.
PE. From the leg clots can break off and if they do they almost always travel to the lungs where they block the blood flow so you can't get oxygen into your blood. This is very risky and can be fatal so the blood clot needs to be treated to keep this from happening.

Related Questions

How do you treat the complications resulting from blood clots in the leg and kidney?

Anti-coagulants. These help your body's natural clot dissolving mechanisms work more efficiently, and they reduce the formation of additional clots. Read more...

I have what looks like a bruise on my leg, slightly raised. I am also being treated for blood clots in my lungs so could this be a clot too? No rednes

Need to examine. It is more likely to be a hematoma due to your being anticoagulants. It would be prudent to consult your doctor next time you see her/him. Wish you good health!. Read more...

How is someone with a suspected blood clot in the leg and a lung infection (pneumonia) treated?

Pneumonia. is treated with antibiotics. Treatment of a blood clot in the leg depends on the type and location of the vein that is thrombosed. If it is an anatomic "deep vein", it may require anticoagulation or more agressive treatment depending on your clinical situation. Read more...

I have several blood clots in my lower leg and I'm being treated with blood thinners, is it normal to feel exhausted and just under the weather?

It could be. But the reason they are treating your blood clots is of course to avoid them going to your lungs. If you are at all short of breath, or have the slightest chest pain or fever, you should see your doctor. You mention you also have bleeding, so excess or hidden (internal) blood loss could also cause this. Get checked. Good luck with this! Read more...

Can blood clots be treated? I have blood clots, one in each leg, one in my left arm now. Dr has given me injections of exnoxaparin for the next few days I have been talke Coumadin 5 sense october when they found blood clots in me after surgery.

When . When they are very fresh--less than two weeks old--clots can often be dissolved or mechanically broken down using a variety of techniques. However, these approaches are usually contraindicated in a patient who has recently had surgery. With older clots, like yours, blood thinners like Coumadin (warfarin) are the usual approach. A patient who develops a lot of clots in multiple areas of the body needs to be evaluated for an abnormality in the clotting system. Have you been seen by a hematologist? If not, that would probably be an appropriate next step for you. Read more...
Serious. Need to figure out cause? Some blood problems-coagulopathies can exist and have clotting. Medications, surgery, cancers, sedentary life are known risks to be controlled, modified. Once found, treatment is anticoagulation while stabilizing and resorbing the thrombus, or scarring the veins. Long term process. Read more...