Large wounds may heal on their own without a skin graft, but this needs to be determined on the basis of the patient’s own condition and cannot be generalized. Skin grafting usually refers to skin transplantation, mainly through the transfer of normal parts of the body to the damaged parts of the skin, usually used to repair the damaged parts of the skin and soft tissue, usually able to repair the wound. Wounds without skin grafts can be self-healing usually need to be decided according to the patient’s injuries, patients with large but shallow wounds can generally be self-healing, but patients with large and deep wounds, and more than 3 weeks or so does not recover, usually need to carry out skin grafting surgery, if not in time to implant the skin may lead to patients with wounds appearing in the local infection and other undesirable symptoms. Patients with large wounds should go to the hospital in a timely manner to decide whether a skin graft is needed under the judgment of the doctor.