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Piliavin and Callero [4] believe that all five of the theories outlined earlier have some relevance to blood donation. The identity theory is thought to be “overarching,” and that the “sense of self as donor is clearly the central factor among the personal determinants of donation” [4]. Becker’s model applies to making the commitment to donate, the opponent process and attribution theories relate to the development of a sense of the individual as a blood donor, and the theory of reasoned action is involved in translating the person’s idea of himself or herself as a blood donor into action to donate. In integrating these theories, Piliavin and Callero [4] believe that the decision to donate is based on “childhood experience factors” negatively influenced by “pain and inconvenience” and positively influenced by “social pressures.”

Experienced donors increasingly internalize the expectations and the role of being a blood donor. Donor identity correlates with the donation intention. Self‐determination theory indicates that people persist with behaviors that are internally versus externally motivated. This theory of self‐determination has been at the basis of thinking about blood donor recruitment [22].