[Body Integrity Identity Disorder (BIID): interrogation of patients and theories for explanation].

Apotemnophilia, Amputee Identity Disorder or Body Integrity Identity Disorder (BIID) is the intensive feeling that the body will be "more complete" after amputation of a limb. The article disputes the question of matching personality characteristics of these subjects and asks for motives. Based on reports of nine individuals, triggering experiences are referred. In contrast to other children, often these subjects were fascinated by the sight of a handicapped person. In the article is investigated, whether the concerned limb showed more affections. Described is typical pretending behavior. Parallels to body dysmorphic disorder (BDD), fetishism, or delusions are investigated. These were minor, in most cases the wish was fixated on a specific limb, the subjects were aware of the abnormity of their desire and quarreled with the pros and cons. Sexual motives were found in one third. Some of the interviewed persons were in medical or psychological therapy; this did not let the desire disappear. In several BIID sufferers the wish for amputation changed, e. g. from the left to the right leg. This finding is not in accordance with the brain-dysfunction-theory. These people rather have an ideal of a "perfect" body minus one arm or leg. Most admire the beauty of a stump, and see amputees as "heroes" who still master their life in spite of their handicap. BIID is not a homogenous disturbance, one should separate three axes: 1. Strength of neuronal dysfunction, 2. Psychic components (e. g. secondary morbid gain) and 3. Intensity of sexual interests.