The titanium nail of the disposable circumferential suture device will fall off by itself in most patients. If it does not fall off after two weeks, the titanium nail can be accelerated by local disinfection and bathing. If it takes more than four weeks, patients are advised to go to the hospital for removal. Most patients will be able to remove the titanium nail by themselves after two weeks, mainly due to the gradual necrosis of the tissues clamped in the middle of the titanium nail, which will cause the titanium nail to fall off by itself. If patients do not fall off after two weeks, you can use iodine povidone every day for local disinfection, or normal bathing, which can accelerate the process of titanium nails fall off. If the titanium nail has not fallen off after more than four weeks, it is not recommended that the patient remove it by himself, otherwise it may cause local pain, bleeding or infection and other symptoms. In this case, the patient can go to the hospital, the doctor will give aseptic treatment, and according to the reason why the titanium nails have not fallen off, if necessary, even remove the local scar before removing the titanium nails. Patients must pay attention to the wound care after the operation to avoid symptoms of infection, and if it does not fall off for a long time, they should go to the hospital in time for treatment.