This is a very heavy topic and one that we need to take seriously. Severe trauma can cause serious damage to the limb, and surgical repair is very difficult. Whether to preserve or amputate such limbs requires very good communication between the doctor and the patient. From the patient’s point of view, there is always a desire to preserve the limb to the greatest extent possible. This is not only a physical disease issue, but also a psychological one. A mutilated limb not only causes partial loss of function, but also has a huge impact on a person’s self-confidence. This should be fully understood as a physician. From the doctor’s point of view, it is still the hope to save the limb of the patient through his or her own efforts. First, the doctor should have the relevant medical knowledge and technical skills. In particular, microsurgical techniques, which are essential in patients with concomitant vascular damage or large skin lesions. The patient’s limb should never be easily abandoned because of the limited technical means, but should be transferred to a hospital with the right conditions for treatment as soon as possible. As a physician, you should choose the treatment method that is most beneficial to the patient from the patient’s perspective. In one patient with severe crush finger injury, his right thumb as well as 2, 3 and 4 fingers were severely pinched by the gears and had been destroyed beyond reimplantation. However, the damage to the distal end of his middle finger was relatively minor. According to his condition, we transplanted the relatively intact part of the middle finger to the thumb and reconstructed the thumb to preserve the maximum function of the hand. However, for some patients with severe loss of function after limb preservation, it is important to weigh the pros and cons. These types of limb injuries are often accompanied by severe damage to tendons and nerves. For example, severe electroshock injuries to the hand can cause extensive necrosis of muscles, blood vessels, and nerves. Even if the limb is barely preserved, its function is very poor or even completely non-functional, and then the symbolic significance of the hand is far greater than its actual value. In today’s technologically advanced world, it is not a better choice to give up the limb and opt for a prosthesis. This requires accurate prognostic judgments and patient explanations from doctors. But doctors can never replace the patient’s choice, and for those patients who psychologically desire integrity, I believe that the patient’s decision should be fully respected.