The chance of experiencing a complication while giving birth is extremely low, but researchers say the number of women who do have a problem has gone up significantly.
Researchers at the NIH compared the number of complications reported among women giving birth in 1998, to those reported in 2005. They found the chance of experiencing a problem went from six-tenths of a percent, to eight-tenths of a percent.
The number of women who needed a blood transfusion went up 92 percent, and the number of women who had a blood clot travel to their lungs went up 52 percent.
Experts say the increase in c-section deliveries may have something to do with the rise in complications. They also say the study did not differentiate between women who had an elective c-section, and those who had labored for hours and then underwent the surgery. They say more studies are needed.