9 doctors weighed in:
Swollen leg, what can cause this besides a blood clot? How can you tell a blood clot?
9 doctors weighed in

Dr. Ted King
Phlebology
3 doctors agree
In brief: Pain and swelling
Commonly, blood clots cause pain and swelling but sometimes they will only cause one or the other. Occasionally, they cause no symptoms.
Ultrasound is the only way to know for sure, as dr. Korona said. Unfortunately, d-dimer results can be unreliable.

In brief: Pain and swelling
Commonly, blood clots cause pain and swelling but sometimes they will only cause one or the other. Occasionally, they cause no symptoms.
Ultrasound is the only way to know for sure, as dr. Korona said. Unfortunately, d-dimer results can be unreliable.
Dr. Ted King
Dr. Ted King
Thank
Dr. Matt Malkin
Anesthesiology
3 doctors agree
In brief: Multiple
It depends on if it's one-sided or both.
One-sided can be DVT (clot), lymph blockage, venous injury, various cysts. If both, can be heart, liver or kidney failure, poor venous or lymph drainage, among other. Best to see doctor. They can diagnose with ultrasound and/or d-dimer blood test, depending on their judgment.

In brief: Multiple
It depends on if it's one-sided or both.
One-sided can be DVT (clot), lymph blockage, venous injury, various cysts. If both, can be heart, liver or kidney failure, poor venous or lymph drainage, among other. Best to see doctor. They can diagnose with ultrasound and/or d-dimer blood test, depending on their judgment.
Dr. Matt Malkin
Dr. Matt Malkin
Thank
Dr. Michael Korona
Radiology - Interventional
1 doctor agrees
In brief: Need ultrasound
Get checked.

In brief: Need ultrasound
Get checked.
Dr. Michael Korona
Dr. Michael Korona
Thank
1 doctor agrees
In brief: With an ultrasound
If you have only one of your two legs swollen, you should have an ultrasound which can show a blood clot.
There are other causes too, but i'd have to know more about you to tell you what would be likely. See your doctor, this could be serious!

In brief: With an ultrasound
If you have only one of your two legs swollen, you should have an ultrasound which can show a blood clot.
There are other causes too, but i'd have to know more about you to tell you what would be likely. See your doctor, this could be serious!
Dr. Scott Welker
Dr. Scott Welker
Thank
Get help from a real doctor now
Dr. Crystal Twynham
Board Certified, Surgery
29 years in practice
938K people helped
Continue
108,000 doctors available
Read more answers from doctors