Studied 260 male Ss hospitalized in Morocco on individual, familial, and collective levels with respect to age, family status, number of offspring, occupation, residence characteristics, duration and number of hospitalizations, neurologic condition, and incidence of alcoholism, cannabism, and syphilis to examine how ethnic, cultural, and religious peculiarities of North African society mark the clinical picture and dynamism of schizophreniParanoia, followed in importance by catatonia, is the predominant form, doubtlessly representing a fundamental characteristic of North African psychopathology. Other clinical characteristics, as well as prognosis, are discussed in relation to their counterparts in European countries.