Per DSM-5, at least one of the following has to be present to diagnose schizophrenia except

A. Hallucinations are a core positive symptom of schizophrenia and involve false sensory perceptions without an external stimulus (e.g., hearing voices, seeing things that are not there). According to the DSM-5, hallucinations are one of the three essential symptoms that must be present for a diagnosis.

B. Delusions are fixed, false beliefs that persist despite evidence to the contrary (e.g., persecutory delusions, grandiose delusions). Delusions are a hallmark symptom of schizophrenia and are required as a diagnostic criterion if present.

C. Disorganized speech reflects disorganized thinking, a key symptom of schizophrenia. It includes incoherence, tangentiality, and word salad, demonstrating the cognitive dysfunction associated with the disorder. If disorganized speech is present, it fulfils one of the primary diagnostic criteria.

D. Negative symptoms such as avolition, anhedonia, alogia, and flat affect, are common in schizophrenia but are not required for diagnosis. According to the DSM-5, at least one of the following three symptoms hallucinations, delusions, or disorganized speech must be present to meet the diagnostic criteria for schizophrenia.

A. Repeated passage of saliva into clothing. There is no recognized disorder characterized by excessive saliva passage onto clothing. However, sialorrhea (excessive drooling) may occur in neurological conditions like cerebral palsy or as a side effect of medications like clozapine.

B. Repeated passage of feces into clothing. Encopresis is the repeated, involuntary or intentional passage of feces into inappropriate places, such as clothing or the floor, in children older than 4 years. It is often associated with chronic constipation, stool retention, and overflow incontinence, though it can also occur in response to emotional stress or behavioral issues.

C. Repeated passage of rights. This phrase does not correspond to any recognized medical or psychiatric condition.

D. Repeated voiding of urine into bed or clothing. This describes enuresis, not encopresis. Enuresis is the repeated involuntary or intentional voiding of urine into bed or clothing, occurring at least twice a week for three consecutive months in children older than 5 years. It can be nocturnal (night-time bedwetting), diurnal (daytime), or both.