There have been many reports on both operative and conservative treatments for ingrown nails. However, relatively little has been reported on treatment selection for incurvated nails. This is despite the great number of patients who suffer from incurvated nails, which are frequently seen in the elderly. Furthermore, an ingrown nail can become incurvated following surgical treatment. Therefore, it seems that a considerable number of potential patients exist. In this report, I show that corrective treatment using a super elastic wire, which has become common in recent years, is effective not only for incurvated nail, but can also be applied for ingrown nails of various pathological conditions by adding adjunctive treatment. I also discuss in this report the appropriate caregiver attitude for treatment of nails. My experience in correction of incurvated and ingrown nails has demonstrated that conservative treatment is appropriate for both pathological conditions, especially treatment with a super elastic wire.