In terms of the material of the titanium nail itself, there is no effect of placing it in the body and no special after-effects. However, whether or not they need to be removed depends on the original fixation function and the specific site of fixation. Clinically, most of the titanium nails do not need to be removed, but some parts of the body must be removed, otherwise it will have a great impact on the body. For example, if there is a screw for lower tibiofibular joint fixation, it has to be removed before walking on the ground, otherwise, when walking on the ground, there is a slight movement of the joint, which will easily cause the nail to break inside. Even if it breaks inside, it has no effect on the body, but it is very troublesome to remove it at a later stage. The starting point for removing the nail is because it is easy to break inside, not because the titanium nail has any major impact on the body and what kind of aftereffects it will have.