La Belle Indifférence

French for 'beautiful indifference', historically associated with descriptions of hysteria and now most often discussed in relation to functional neurological and conversion presentations.

La belle indifférence is a striking lack of concern shown by a person about a significant physical symptom they are experiencing, such as a limb that will not move or a loss of sensation, in a way that seems disproportionately unbothered given how disabling or alarming the symptom would normally be. The person may describe or demonstrate the symptom quite readily, but without the worry or distress most people would show about a comparable physical problem.

This has traditionally been described in connection with conversion and functional neurological symptoms, though it is now recognised as an unreliable diagnostic marker on its own: a calm manner about a symptom can also be seen in some genuine neurological conditions, and its absence does not rule out a functional cause.

Recognition features

Eliciting it at interview

Distinguishing features

Common misconceptions

Related phenomena

Dissociation of Affect · Abnormal Expression of Emotion

Practice this

A woman presents with a sudden inability to move her left arm, fully consistent with a functional neurological symptom. She describes the paralysis clearly and in detail when asked, but does so with a calm, faintly cheerful manner that seems strikingly out of keeping with the apparent severity of losing the use of a limb. What is this attitude called? · A man with a functional non-epileptic seizure disorder discusses his diagnosis calmly and seems relatively untroubled by it, but when you ask directly, he says he does worry about it and simply prefers not to dwell on it, and his sleep and appetite have been affected. Before revealing the answer: is this la belle indifference? · A patient with a striking physical symptom seems remarkably unbothered by it. Before revealing the answer, decide what distinguishes la belle indifference from denial. · A patient's outward presentation seems out of keeping with an underlying problem. Before revealing the answer, decide what distinguishes smiling depression from la belle indifférence. · You are assessing a patient with a functional neurological symptom and want to establish whether la belle indifference is present. Before revealing the answer, decide what you would specifically look and listen for during the assessment. · Explain why la belle indifference is not simply a more dramatic form of denial.

Illustration

A 34-year-old woman reports that her right arm has been completely unable to move for the past week, yet describes this while smiling faintly and chatting easily about unrelated topics, showing none of the worry or frustration her clinician would expect from someone suddenly unable to use a limb.

References