The patient, whose gender has not been revealed, was leaving Danderyd Hospital north of Stockholm after a follow-up visit when the person was knocked backwards after crashing into a windowless automatic door.
The patient's head then hit the reception desk, dropping the patient to the floor and leaving the person bloody and unconscious.
The automatic door was reportedly set off by someone who was on their way into the hospital, and then hit the patient who was not expecting the door to move.
Even though there was immediate care at hand, doctors reported that the patient's injuries were so serious that the person eventually died in hospital, despite initially showing signs of improvement.
The incident was reported to the National Board of Health and Welfare (Socialstyrelsen) according to Lex Maria, the informal name for regulations governing the reporting of injuries or incidents in the Swedish health care system.
Following the accident, the door was outfitted with a window allowing visitors to see one another before the door is activated, in the hope of preventing similar incidents.