Red flags Red flags After taking a history and examining the patient it is important to consider ‘red flags’ ( Table 37.5 ), which allow diagnostic triage into those with serious pathology of the spine, such as CES, fractures, tumours and infection, and those without. - Red flags After taking a history and examining the patient it is important to consider ‘red flags’ ( Table 37.5 ), which allow diagnostic triage into those with serious pathology of the spine, such as CES, fractures, tumours and infection, and those without. - Red flags After taking a history and examining the patient it is important to consider ‘red flags’ ( Table 37.5 ), which allow diagnostic triage into those with serious pathology of the spine, such as CES, fractures, tumours and infection, and those without. -