Which term refers to thoughts about self-harm without action?

The correct choice points to "suicidal ideation," which precisely describes the occurrence of thoughts regarding self-harm or the contemplation of suicide without any corresponding actions taken to carry out those thoughts. This term encompasses a range of thoughts, from fleeting considerations to more intense preoccupations with self-injury or ending one's life, yet it distinctly emphasizes that these ideas remain unacted upon.

This concept is central to suicide prevention as identifying individuals experiencing suicidal ideation is vital for effective intervention. By recognizing those who may be grappling with these thoughts, healthcare providers can offer necessary support and treatment before such ideations potentially escalate into intentions or actions. In contrast, the other terms listed refer to different aspects of self-harm or suicidal behavior, such as the presence of intent or actual attempts, which do not solely center on the thinking phase. The awareness of individuals with suicidal ideation allows for timely assessment and support, ultimately aiding in the prevention of self-harm and suicide.