A knife blade has been found lodged in the neck of a man who didn't even realize he had been stabbed.

Ambulance Victoria said the Australian man's wife saw blood trickling out of his neck when he went to bed after apparently being in a fight.

After calling for an ambulance, paramedics discovered the blade had snapped off in his neck.

Slideshow: Outrageous Injuries

Intensive care flight paramedic Matthew Shepherd said the 40-year-old claimed he had been in a fight and felt a thump to his neck - but was unaware he had been stabbed.

Remarkably, he escaped serious injury when the blade came within millimeters of his spine.

He was flown by air ambulance from Albury to Melbourne this morning and is in a stable condition.

"The 40-year-old said he went home and got into bed, not realizing he had been stabbed,'' Shepherd said."The man's wife then apparently found blood coming from his neck and called for an ambulance.

"On closer examination it was found that a blade had snapped off in his neck.

"It came within millimeters of his spine, but thankfully it hasn't made contact.

"Our biggest priority during the flight was to make sure the man stayed as still as possible, to prevent the blade from moving and potentially causing further damage.''

Earlier this month Russian woman Julia Popova, 22, made global headlines after she was stabbed during a mugging in Moscow - but did not realize and walked calmly home with a knife in her neck.

When she got home her horrified parents rushed her to the hospital, where surgeons managed to remove the blade without damaging her spine.

"Shock had kicked in and her body prevented her from feeling any pain," one medic said.

"She simply walked home without feeling the knife in her back."