What causes lower calves to swell. had venous doppler test. showed little reflux in one. started when had cdiff with abnormal ekg. stress test okay.

Fluid in the legs: If someone has had a recent illness, swelling in the legs can be a byproduct of that-esp. if it was severe. If you had C. diff, then you probably were quite ill. I suspect your albumin must be low (a protein in the blood and correlate of good health). Leg swelling in your case is probably from tissue fluid (lymph) that's sitting there in that 3rd space. As your health recovers, it should go away.