Auditory hallucinations and paranoid delusions are features of psychotic depression. In psychotic depression, patients often have auditory hallucinations where they hear voices telling them to commit suicide and saying derogatory things about them. Patients with nocturnal enuresis often have day frequency and suffer from bedwetting even if fluids are restricted at night. It is a diagnosis of exclusion such that UTI, glycosuria, and bladder abnormalities have been investigated for and excluded prior to the diagnosis being made. Lesions at the hypothalamic diencephalic region give rise to the clinical picture of Korsakoff’s psychosis. This is characterized by impairment of memory and a disordered sense of time. Some neuropsychiatric complications of alcoholism: Wernicke’s encephalopathy, and dementia. Paranoid delusions occur in schizophrenia, depressive psychosis as opposed to depressive neurosis, substance abuse, and senile dementia. Faecal incontinence and antisocial behaviour occur in dementia.