Sexual and/or physical abuse can be found in large numbers in the history of severely disturbed borderline patients. The treatment of experiences of incest can induce new symptoms as well as reinforce still existing symptoms. Thus the free-floating anxiety, which is connected with the anxiety of impending doom in early childhood, can be reduced. During in-patient treatment the extent of free-floating anxiety of borderline patients can be reduced by the holding function of the therapeutic team. Reduction of the other symptoms can take place only subsequent to this. A therapy geared to the reduction of singular symptoms might be less successful.