One Swollen Ankle Left Or Right Leg:

One leg only can be a potentially dangerous situation. It is important to test your calf for pain at this point.

Swollen Ankle Causes:

1)If you recently sprained your ankle, then consider an ankle sprain or injury.

One Swollen Ankle Left Or Right Leg
If you recently twisted your ankle or suffered an injury, jump to our ankle injury guide!

Jump To The Ankle Injury Treatment Guide!


2)Yet, if you woke up one morning & one calf or ankle began to hurt- consider a deep vein thrombosis!

One Swollen Ankle Left Or Right Leg
If you did not suffer an injury, but one leg become swollen but not the other, strongly consider a deep vein thrombosis!



Deep Vein Thrombosis:

This is the formation of a blood clot in a deep vein of the calf:

  • This is very common in people who have not been moving around lately.
  • This includes long car rides.┬áLong plane rides.
  • Even┬áPeople sick in bed for numerous days in a row.
  • It occurs due to 3 factors: decreased flow speed, increased inflammation & blood vessel aging.
  • The most at risk people are the elderly & smokers.



One Swollen Ankle Left Or Right Leg
A deep vein thrombosis is a blood clot in your leg. It makes everything past it become red, warm & swollen. This appears as just one leg, calf & ankle swollen but not the other.



Causes Of A Deep Vein Thrombosis:

This is most common in people who are those who have either decreased blood flow speed, inflammation & aging of the blood vessel.

  • Older age is a risk factor.
  • Obesity.
  • Inactivity & bed rest.
  • Sitting, travelling or resting for numerous hours or days.
  • Wearing a cast.
  • Pregnancy.
  • Previous thromboembolism or deep vein thrombosis.
  • Inflammatory or autoimmune diseases.
  • Infection.
  • Recent major surgery.


One Swollen Ankle Left Or Right Leg
This is a very severe deep vein thrombosis. The left leg is clearly swollen, red & inflamed. This is a clear hospital visitation situation!


Symptoms Of A Deep Vein Thrombosis:

All of these symptoms normally just occur on one leg, but not the other:

  • Ankle & calf pain.
  • Swelling, redness & warmth.
  • Possible engorged superficial veins: varicose veins.
  • Pain upon squeezing the back of the calf.


Swollen leg
A clot in the deep vein will make the entire calf & ankle swell on just one side but not the other. The leg will experience pain upon squeezing.


Confirm Deep Vein Thrombosis:

A quick test that may help aid in diagnosis is the Homan test:

  • Have someone squeeze both calf muscles.
  • If one is very painful compared to the other, this increases the odds of a deep vein thrombosis.
  • It will also be painful if you bend the foot back extending the calf muscle on the effected side.


One Swollen Ankle Left Or Right Leg
Squeezing the calf or bending the foot towards the shin will elicit a large pain response.


Is A DVT Dangerous?

There is a significant danger that the thrombosis may embolize (detach & clog somewhere else in the bloodstream).

  • The deep veins of your leg & calf lead to your heart.
  • They then eventually lead to the lungs before the blood vessels become smaller again.
  • If the blood clot makes it this far, it can become stuck in your lungs.
  • This severely impairs the blood flow to your lungs and can kill the patient!
  • If you suspect deep vein thrombosis, get yourself to the hospital immediately!


One Swollen Ankle Left Or Right Leg
If you experience the signs & symptoms of a DVT as described above, get to a emergency room immediately for anti-coagulation treatment!



Get To A Hospital Immediately!