An information processing device that determines a treatment content to be performed from a behavior tendency of a user itself of an electrical treatment device. The information processing device includes a control unit configured to control the information processing device, wherein the control unit includes a storage processing unit configured to acquire behavior information indicating a content of a behavior of a user of an electrical treatment device and store the behavior information in a storage unit, a tendency determination unit configured to determine a behavior tendency on the basis of the behavior information indicating the content of the behavior of the user stored in the storage unit, and a program determination unit configured to determine a treatment program for causing the electrical treatment device to perform a treatment content corresponding to the behavior tendency.