The authors present a new technique in surgically treating hidradenitis suppurativa (HS), a debilitating skin condition. In HS, surgical treatment is often the best option because of the high recurrence rates despite extensive medical treatment. A commonly successful surgical method is using skin flaps after excision of the affected area. A superficial inferior epigastric artery flap is demonstrated here as a new alternative approach to treating a case of extensive HS of the groin. By using the pedicled superficial inferior epigastric artery flap for groin reconstruction, inguinal HS can be widely excised and reconstructed with minimal donor-site morbidity and a good aesthetic outcome.