In the year 1899, Emil Kraepelin called this mental disorder Dementia praecox, and in the year 1911 Eugen Bleuler changed it's name to schizophrenia. Schizophrenia is a mental illness that, due to its heterogeneity, does not have a precisely defined etiology. It is divided into several types (paranoid, hebephrenic, catatonic, simplex, etc.) and each of them have individual specifics on which the final diagnosis is made. DSM-V and ICD-10 criteria are used for the diagnosis, along with a well-established anamnesis, mental status and recognized symptoms. Schizophrenia symptoms have several divisions, and the most widely used is positive and negative symptoms. The use of psychotherapy, sociotherapy and biological therapy is aimed at treating the patient's symptoms and achieving his goals in such a way as to improve his daily functioning, but also to progress further in life. In the psychiatric team, in addition to the psychiatrist, the role of the nurse/technician is also important. The role of the nurse/technician is to observe people suffering from schizophrenia, determine the symptoms from health care, compose nursing interventions and create a health care plan based on the collected data. She must be empathetic, assertive, have good communication skills and support the patient in all stages of his illness. Successful treatment requires a good relationship between the nurse/technician and the patient, adherence to the doctor's instructions and regular use of the prescribed therapies. The influence of the family also plays a big role in the course of the disease, because through education and participation, it helps the patient, as well as themselves.