LANSING, Mich. Gov. Jennifer Granholm has undergone emergency surgery to treat a bowel obstruction, postponing a planned investment trip to Israel and Kuwait, her office said Wednesday.

Granholm s office said the 49-year-old second-term governor underwent successful surgery late Tuesday to treat an obstruction that is believed to be a complication from injuries sustained in a 1993 auto accident.

Doctors said Granholm s prognosis was good, and she was resting comfortably.

Granholm wasn t feeling well on Sunday, said spokeswoman Liz Boyd. She reported having flu-like symptoms Monday, but kept her schedule.

Granholm had emergency surgery at Lansing s Sparrow Health System at 8:30 p.m. Tuesday. The surgery lasted two hours, Boyd said.

The announcement came Wednesday morning, soon before Granholm was expected to leave on the investment trip.

The investment mission had been expected to last through May 8. Granholm planned to recruit high tech, alternative energy and homeland security businesses during the trip.

The trip will be rescheduled for a later date, Granholm s office said.

First Published April 30, 2008, 2:13 p.m.