Healing of a perineal wound is a very important step in the treatment process after abdominoperineal amputation for rectal cancer. An unhealed wound is a significant clinical problem as it delays the implementation of adjuvant therapy and can become a source of generalised infection. Treatment options include surgical wound debridement and negative pressure therapy, as well as musculocutaneous flap grafting and an inverted gluteal flap techniques. Despite the development of modern therapeutic approaches, difficult-to-heal wounds remain a significant clinical challenge. Some techniques may be ineffective or unfeasible in selected cases. We then go back to traditional surgical techniques. The paper presents a case of treating an unhealed perineal wound by gluteal dermal-subcutaneous flap displacement. In this case, an excellent cosmetic and functional outcome was achieved 30 days after the repair. Traditional surgical techniques, such as the dermal-subcutaneous flap displacement described in this article, are still applicable in the treatment of hard-to-heal wounds after abdominoperineal rectal amputation.