At the hospital, suspicion of crime arose and the police are investigating the incident as an attempted murder.
A woman who has a relationship with the injured man was arrested on suspicion of attempted murder.
The woman was taken to the station for questioning.
The crime scene, which according to the police is indoors in Motala municipality, has been cordoned off for technical investigation.
The man's injuries are considered serious but, according to information from the police, are not life-threatening.
Seizure of a stabbing object has been made, the police write on their website.