Surprise blood clot diagnosisYou don’t think a woman in her 20′s would be at risk for a sudden and dangerous health condition. “They found a blood clot in my shoulder after doing an ultrasound,” said Julianne. That’s part of what caused the blood clot in the first place. “It could have been very bad, 90% of my blood wasn’t getting through - or my blood clot could have broken off,” Julianne said. Women at risk for blood clotsWhile the condition that caused Julianne’s blood clot is rare, doctors say women are at more of a risk of developing blood clots.