Needle knife for relieving pain scars

The utility model relates to a pain scar reducing needle knife which comprises a needle body part and a needle handle part, and the needle handle part is fixedly connected with one end of the needle body part. The needle body part comprises a rod body and a needle head, one end of the rod body is fixedly connected with the needle handle part, the other end of the rod body is connected with the needle head, the needle head is wedge-shaped, a knife edge is formed at the end, away from the rod body, of the needle head, the two sides, close to the knife edge, of the needle head are sunken inwards, and the length of the knife edge is smaller than the diameter of the rod body. The needle head is in a wedge shape, the two sides, close to the knife edge, of the needle head are sunken inwards, and the length of the knife edge is smaller than the diameter of the rod body, so that when the needle head is inserted, the contact area between the needle head and the skin is smaller, resistance is smaller, the needle head is