That's because new moms have a particularly high risk for blood clots during the early postpartum weeks, and the estrogen in the ring increases this risk even more. (babycenter.com)
There have been several reports that the ring may put you at an increased risk for blood clots, and this is still being studied. (blog.advocatesaz.org)
Following treatment, dogs should have restricted exercise for up to six weeks because active dogs are at risk for blood clots in the lungs. (oregonvma.org)