Los Angeles - Bret Michaels is expected to make a full recovery, according to his doctor.

The 47-year-old former Poison frontman's will to live is "undeniable," said Dr. Joseph Zabramski, chief of cerebrovascular surgery at the Barrow Neurological Institute at St. Joseph's Hospital and Medical Center in Phoenix, who has been leading the team treating "The Celebrity Apprentice" contestant since he suffered a brain hemorrhage last week.

"Mr. Michaels will continue to undergo testing considering we have hit a few roadblocks, including hyponatremia, severe cranial and back pain suffered from blood drainage, an emergency appendectomy performed a week earlier and a lifelong history of Type 1 diabetes," Zabramski said in a statement released last week by Michaels' New York-based publicist, Joann Mignano.

Michaels, who was diagnosed with Type 1 diabetes at age 6 and underwent an emergency appendectomy April 12, was rushed to St. Joseph's Hospital last week with a severe headache. He was later diagnosed with a subarachnoid hemorrhage, which causes bleeding in the fluid-filled spaces around the base of the brain.

"There is no doubt that Mr. Michaels' condition is serious," Zabramski said.

He said Michaels, who has two daughters, 9-year-old Raine Elizabeth and 4-year-old Jorja Bleu, "did not want his family to wake up and see him lying unconscious in the middle of the floor."

He also said immediate medical attention and Michaels' "fight to stay conscious during the hemorrhage" enabled doctors to stabilize Michaels' condition.

www.bretmichaels.com/

www.nbc.com/the-apprentice/