Aggregated News

Two days after Debra Demidon underwent in vitro fertilization, she gained more than 30 pounds in fluid and suddenly was struggling to breathe.
Doctors diagnosed severe ovarian hyperstimulation syndrome (OHSS), a complication seen in some women who undergo fertility treatment. It landed Ms. Demidon in the hospital for five days; doctors ultimately drained 6.5 liters of fluid from her body. She missed three weeks of work, and by the time it was over, she and her husband had spent all of their savings.

“It was my first time doing IVF, and I’ll never do it again,” said Ms. Demidon, 28, a quality assurance specialist in Cayuga, N.Y. “It was awful. When you have that much fluid in you, it puts pressure on everything.”

OHSS is a little-known complication of fertility treatments that rely on high doses of hormones, which are standard in the United States and the United Kingdom; the syndrome is not the only health problem to be linked to in vitro fertilization. Fertility clinics in Europe and Japan have turned to a safer, low-dose form of IVF, but...