It is not easy to define psychosomatics, because the psychological and somatic reasons of illness have always been discussed. The relationship between the psyche and the body is very complex and it is one of the major subjects of discussion in the medicine since Hippocrates. The modern psychosomatics were born with psychoanalysis. Sigmund Freud and some of the clinicians of his time, like G. Groddeck, S. Ferenczi, F. Deutsch, and W. Reich showed an interest on psychosomatics. Freud's followers worked to improve psychoanalytical theory and practice in this field. There are three major schools of psychosomatics: M. Klein and her colleagues Garma and Sperling; Chicago School F. Alexander and his students; Paris Psychosomatics School with P. Marty, M. de M'Uzan, C. David and M. Fain. The child psychosomatics became important after the Second World War after the works of M. Klein, D. Winnicott, R. Spitz, S. Lebovici and M. Soulé.