It is common in Japan for implantable pulse generators (IPG) to be inserted in the abdominal region. Inserting one in the buttock region is superior to inserting it in other regions in terms of the degree of invasiveness, patient quality of life (QOL) and aesthetic considerations. We report a case in which Eon Mini, the world's smallest IPG, was inserted in to the buttock region to carry out pain control within spinal cord stimulation (SCS). The subject was a 41-year-old female who had undergone surgery for lumber disk herniation 10-years earlier. Although pain control was performed with nerve block and drug therapy because of the symptoms restarting, the analgesic efficacy was poor; therefore the subject underwent SCS. The patient had a desire to have a baby, and an IPG was inserted into the buttock region, avoiding insertion into the abdomen. Now, after 10 months postsurgery, a high analgesic efficacy is observed based the pain control having been well carried out.