The vast majority of mental health clinicians and researchers rely on diagnostic systems based on operational criteria. However, in their everyday practice, many clinicians also pay attention to their own feelings or intuitions about the patient. For an even greater number of clinicians, this process may occur inadvertently. Scholars from various fields are increasingly stressing the importance of complementing the emphasis on operational criteria with thoughtful attention to the subjective and intersubjective elements involved in a thorough psychopathological evaluation.