Theorists claim that reticence, communication apprehension, unwillingness to communicate, and shyness are different problems, but the interrelationships among those constructs has not been systematically explored. The purpose of this paper is to examine theoretical assumptions underlying these four constructs regarding the nature of the problem, how it is identified, its etiology, and proposed solutions. This analysis reveals that the four labels do not denote four discrete problems; rather, the constructs overlap to a great extent. A systematic interview in conjunction with self-report scales is recommended as the means of identification of the problem, since present methods do not provide a precise account of the specific nature of individual difficulties. The particular treatment used should depend on the exact nature of the problem as it is reported by the individual, rather than applying one specific mode of treatment in every case.