CHANGSHA - Three nurses, including a pregnant woman, were injured in a knife attack following a plastic surgery dispute on Monday morning in central China's Hunan Province.

A man around 20 years old attacked the nurses around 9:30 a.m. at the plastic surgery department in the Affiliated Hospital of Hunan Academy of Chinese Medicine as he believed the beard implant surgery he received there four months ago was a failure, said a written statement issued by the hospital.

The injuries, mostly to the head and face, are not life threatening, the statement said.

According to the hospital, the man told the doctor on Sunday and Monday that he bore a red mark near his lips and was not satisfied with the surgery result.

Although the doctor replied that the mark was just due to follicle inflammation and that it took about six months to a year for the surgery to take effect, the man made the attack when the doctor left to check other patients, the statement said.

Police are hunting for the suspect.

The National Health and Family Planning Commission of China on Monday afternoon condemned his act via its official microblogging account on weibo.com.

"We hope police, with the help of the hospital, can arrest the criminal as soon as possible, and make effective measures to ensure the safety of medical practitioners," it said.