To identify and evaluate the suicide risk is the first step in suicide prevention. Evaluations for factors of suicide risk (such as major depression and high risk group of suicide)is not often performed in clinical care, expect for the psychiatric care settings. However, the process of help seeking behavior could happened in the following ways such as self-disclosure of suicide idea and risk factors, or transferred by nurses in any department and start to accept further treatment. In this process, help and social support from family or friends can strengthen the intention to seek for help. Therefore, to identify the case with potential risk is the key point to start suicide prevention. Although the investigators don't have any research talking about suicide prevention policy in hospital now in the world, the awareness and identification for group with high risk, risk assessment and transfer are strongly recommended by many Western countries. Nurses can play the role of gatekeeper of suicide prevention, and identify the suicide or self-harm behavior before it occurs and transfer to the right association for further caring instead of providing assessment and protective instructions after the event.