Summary: Behavioral and psychological symptoms of dementia (BPSD) represent a broad spectrum, including altered perceptions of reality, abnormal thinking, mood or behavioural disorders, which are common in people with dementia and have a significant impact on the quality of life of the patient and caregivers. Due to their numerous causes related to the patient himself, his caregiver or the environment in which he functions, the basic issue is to collect a detailed medical history, internal assessment of the patient, his somatic condition, chronic diseases and medications taken. Non-pharmacological management is an important part of treatment. It includes activities aimed at the patient, his caregiver and interventions that modify the external factors / environment of the patient. Pharmacological intervention should be undertaken primarily in a situation where the patient may pose a threat to himself or the environment. Antipsychotics, antidepressants and antiepileptic drugs are used. The aim of this work is to systematize knowledge about the diagnosis and treatment of behavioral disorders and psychotic symptoms accompanying dementia.