The specifics of how many years a titanium mesh repair will be exposed cannot be generalized. Some patients can go a lifetime without exposure, while others experience exposure in the months or years following surgery. Titanium mesh is a common material used in cranial repair surgery. Titanium mesh is often used to restore integrity to the skull in many patients with cranial defects, and the duration of use of titanium mesh varies from patient to patient. Most of the patients do not have discomfort symptoms after surgery, and the mesh is not exposed, which can be used for a lifetime; some patients have infections in the repair site or deformation and exposure due to external force in a few months or years after the surgery. Therefore, proper care after the skull repair surgery can effectively avoid the exposure of titanium mesh, if the titanium mesh is exposed, the patient needs to go to the hospital in time for symptomatic treatment, and some serious cases need to replace the material again.