1 doctor weighed in:
I have a big vein in my lower left abdomen. Why only one side?
1 doctor weighed in

Dr. James Isobe
Phlebology
In brief: Seek help
The isolated vein may be collateral venous drainage, especially if you have had previous blood clot in the left leg, involving the major portion called the iliac vein.
The blockage of blood return through the iliac vein resulted in the body opening other channels for blood return. If you have not had a prior blood clot, it may not be significant . Seek help from your doctor.

In brief: Seek help
The isolated vein may be collateral venous drainage, especially if you have had previous blood clot in the left leg, involving the major portion called the iliac vein.
The blockage of blood return through the iliac vein resulted in the body opening other channels for blood return. If you have not had a prior blood clot, it may not be significant . Seek help from your doctor.
Dr. James Isobe
Dr. James Isobe
Thank
Get help from a real doctor now
Dr. Mark Pack
Board Certified, Surgery
27 years in practice
3M people helped
Continue
108,000 doctors available
Read more answers from doctors