Anger in relation to pain has only been studied recently and scientific evidence has been slow to accumulate.4 This lack of focus on the subject may be due in part to anger not being a diagnostic category in psychiatric classification.15 Approximately 70% of chronic pain patients have reported feeling angry at themselves and at healthcare professionals,16 but this may be an underestimation.
Among individuals with chronic pain, high levels of anger are often associated with greater muscle tension, pain severity, and pain behaviors.17In a sample of chronic pain patients undergoing an extensive psychiatric evaluation, about 10% met the criteria for an intermittent explosive disorder.18 Research has shown that intermittent explosive disorder is.
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