To provide an ingrown nail correction implement which dispenses with surgical operation, uses inexpensive materials, has simple structure, is easily manufactured and can be provided for a user inexpensively and which allows a person having an ingrown nail to treat the ingrown nail and to wear by him-/her-self and is easily attached/detached.

In the correction implement 1, a spring wire is bent and formed into a weak arc shape and its both ends are each bent outward from the arc and formed into hook shapes so that the ends of spring wire function as engagement parts 2 for a nail. The mouth of the arc of the correction implement 1 is drawn to deform and contract it into an shape and both side engagement parts 2 are respectively inserted from the backside of the nail into two small holes bored at both outside liberation edges on the tip end part of the correction implement 1 to engage the correction implement 1 with the nail to widely open the outside edges of the ingrown nail 6 by restoration force of the spring wire to correct deformation of the ingrown nail 6. The person having the ingrown nail can treat the ingrown nail and wear the correction implement 1 by him-/herself and attachment/detachment can be easily done because the correction implement 1 is fixed by a tape etc., to the bottom side of the toe after engaging the correction implement 1 with the ingrown nail without using an adhesive for fixing the correction implement 1.