The thumbnail of the foot grows into the flesh, which is referred to as ingrown toenail in medicine, and can be improved by general treatment and surgical treatment. 1. General treatment: patients with ingrown nails can use nail clippers to cut off the tip of the nail at the end of the toe to grow into the flesh, and try to wear loose-fitting shoes on a daily basis to avoid squeezing or hitting the foot. Patients can also use the nail plate bracket, fixed on the nail plate of the embedded nail, upward force, so that the nail plate to change the curvature, so that the embedded nail plate and soft tissue separation. 2. Surgery: For patients whose conservative treatment is ineffective, the nail plate embedded in the flesh can be removed through nail matrix removal, nail plate avulsion and other surgical procedures, which can effectively alleviate the symptoms. If the thumbnail of the foot grows into the flesh, it is recommended to go to the regular hospital in time and cooperate with the doctor for treatment.