La porphyrie, also called vampire syndrome, is characterized by the disruption of the production of heme, one of the eight enzymes necessary for hemoglobin composition.

This deficiency is manifested by a excessive pallor, the photosensitivity (light intolerance), resulting in swelling, redness and itching of the skin.

It can also cause abdominal pain and nervous and psychological disorders.

Audrey Dulieux