The main role of the prosthesis is the compensatory function, and for patients who have just had their limbs amputated, it is difficult to get out of the shadow of losing a limb. Prosthetics were a strange thing to them, and they knew from a variety of ways that installing prosthetics could return to life like normal people. It will make patients feel hopeful. 

Therefore, they will be curious about the prosthesis and will expect to return to normal life after installation. At the same time, they will also have doubts about the prosthesis, and will wonder whether the effect of their own installation will be far from the results they learned, or there will be no effect. 

Some amputees see that other patients have a good effect after installing prosthetics. He will also think that he can achieve the effect he wants after installing the prosthesis. 

Therefore, amputees will ask the prosthetic technician to achieve some functions that do not fit their own amputation. For example, the patient is a patient with a hip disconnection, but the patient puts forward impossible requirements such as running and playing basketball when the prosthesis is used. 

The compensatory function of the prosthesis is limited, and what functions the prosthesis can produce will be affected by many factors such as the location of the amputation and the condition of the stump. 

During the installation process, because it is impossible to meet the patient's expectations for the prosthesis, it will cause the patient's mood to be depressed, unwilling to cooperate with the training, affecting the training process and effect. 

Patients are more satisfied with the prosthesis, willing to accept the prosthesis. Hurry to adapt to the prosthesis, do not follow the advice of the instructor, wearing in a wrong way with long time  in the process of wearing prosthesis training, all above will result in secondary injuries. Some amputees will think that the rehabilitation instructor is not paying attention to themselves. 

There are also some amputee patients who are unwilling to trust rehabilitation doctors and form confrontational and independent psychological characteristics with rehabilitation doctors. Rehabilitation training is not needed. The rehabilitation doctor asks the patient to train, but the patient is reluctant to participate in the training. In the end, the prosthesis assembly effect is not good, and the patient is not able to control the prosthesis skillfully and effectively. 

For amputees, feelings of inferiority may occur at any time. It will not only appear before the prosthesis is installed, but may also occur in the process of assembling and using the prosthesis. Such patients are more sensitive, and sometimes the casual jokes of the surrounding crowd will make them mistakenly think that they are talking about themselves. Therefore, many patients will choose to be self-isolated, unwilling to communicate with others, and only know to listen to the arrangements of family members and doctors. During this period, the patient does not give any evaluation of the prosthesis, so the prosthetic technician cannot get effective information from the patient about what problems need to be adjusted in the prosthesis wear. 

In view of the above psychological characteristics of prosthetic assembly technicians and family members

For some patients with high requirements for the function of the prosthesis, the doctor will carefully and objectively explain the function of the prosthesis to the patient and give the patient the correct and appropriate assembly plan for the patient's own situation and family economic situation. It eliminates the patient's unrealistic demands without disappointing the patient with the prosthesis. 

Amputees, to a certain extent, have a mentality of self-isolation, continuous depression, depression and other mentalities, and hate the unfairness of god. It will even occur in extreme states such as self-harm and light life. At this time, the same method of persuasion can be adopted. Pity for the same disease, the same situation, the same feelings, will make it easier for them to communicate and get closer. It is more effective to use those patients who have come out of the shadows to lead their peers who are not yet out of the predicament. 

Patients are afraid that the people around them will not be able to treat them equally, and being a doctor should give patients a sense of trust. This requires the doctor himself to respect the patient, communicate sincerely, and open the patient's heart to let them open their hearts and establish a relationship of trust with the doctor.