The veins in my hands, arms and shoulders are very visible because of my translucent skin. Every quarter to half inch along every vein there is a pronounced bump which I have been told are valves. I was told the valves, which BTW makes starting an IV really difficult, develop to maintain the circumference of the vein because the EDS process is stripping out the lining of my veins. To go a step further, a little over a year ago, I had 2 strokes and a pulmonary embolism. These were not the weak spot giving way type of strokes but rather the kind that come from clots forming and blocking the flow of blood to parts of the brain and to parts of the lung. I was told that this was frrom the same sort of sludge coming from the vein stripping from the EDS. I have not read of this anywhere. Does anyone else have the same valves and been given the same explanation of EDS stripping the lining of the veins?