Pain and mental health symptoms commonly travel together. In independent medical examinations, disability evaluations, workers’ compensation cases, personal injury claims, and chronic pain reviews, claimants frequently report that depression, anxiety, irritability, poor sleep, and loss of motivation are “secondary to pain.” They may explain that when their pain is lower, their mood is better, and if the pain resolved, they believe their mental health would return to baseline.
That explanation may be partly true. Pain can worsen mood, sleep, activity tolerance, relationships, work function, and quality of life. However, in medicolegal analysis, the relationship between pain and mental health is rarely one-directional. Depression, anxiety, trauma history, fear avoidance, catastrophizing, illness beliefs, secondary stressors, work dissatisfaction, and personality factors may also influence pain perception, disability, treatment response, and recovery.
For physician experts, the task is not to decide whether the claimant is “really” in pain. The more useful question is: What role are psychological and behavioral factors playing in the claimant’s pain experience, functional impairment, and failure to recover?
Pain and Mental Health: A Bidirectional Relationship
A common error in IME reports is to frame pain and mental health symptoms in a simple sequence:
Injury → pain → depression/anxiety → disability.
That sequence can occur. But it is not the only pattern. The medical literature supports a more complex relationship.
Chronic spinal pain is highly comorbid with mental health disorders. Von Korff and colleagues, using data from the National Comorbidity Survey Replication, found that chronic spinal pain was associated with mental disorders and that comorbidity contributed significantly to role disability. The authors concluded that the societal burden of chronic spinal pain must be understood in the context of comorbid conditions.
Other research suggests that psychiatric conditions may precede pain in some patients. Polatin and colleagues reported that certain psychiatric syndromes appeared to precede chronic low back pain, while major depression could occur either before or after the onset of chronic low back pain.
More recent work also supports a bidirectional model. A National Comorbidity Survey-based study examined pre-existing depression as a risk factor for chronic spinal pain and pre-existing chronic spinal pain as a risk factor for later depression.
The practical implication is straightforward: a claimant’s statement that mood and anxiety symptoms are “because of the pain” should be considered, but not accepted uncritically as the full explanation.
Normal Emotional Distress Is Not Automatically a Psychiatric Disorder
Painful injuries can cause frustration, worry, sadness, sleep disturbance, and irritability. A person with a painful shoulder injury, lumbar strain, fracture, nerve injury, or chronic headache may understandably feel discouraged. This may be a normal emotional response to a physical condition.
In impairment evaluation, this distinction matters. Normative emotional responses to physical injury generally should not be converted into a separate psychiatric impairment unless diagnostic criteria are met and the response is disproportionate, persistent, impairing, or otherwise clinically significant.
A claimant may say:
- “I feel down because I cannot work.”
- “I get anxious when my pain flares.”
- “I worry I will never get better.”
- “I am irritable because I sleep poorly.”
- “I avoid activity because I do not want to worsen the injury.”
These statements should prompt further analysis, but they do not automatically establish major depressive disorder, generalized anxiety disorder, PTSD, somatic symptom disorder, or permanent psychiatric impairment.
DSM-5 and Somatic Symptom Disorder
Somatic symptom disorder is frequently misunderstood in medicolegal settings. It does not mean the person is faking symptoms. It also does not require that the physical symptoms be medically unexplained.
The American Psychiatric Association’s DSM-5 description emphasizes that somatic symptom disorder involves one or more distressing somatic symptoms, accompanied by excessive or disproportionate thoughts, feelings, or behaviors related to those symptoms. The condition is typically persistent, often for at least six months.
A clinical review explains that DSM-5 shifted the focus away from proving the absence of medical explanation and toward identifying disproportionate thoughts, feelings, and behaviors in response to somatic symptoms.
This matters because a claimant can have both:
- A genuine physical condition, and
- A disproportionate psychological or behavioral response to that condition.
Examples include:
- Excessive fear that movement will cause permanent damage
- Persistent belief that minor pain means severe injury
- Repeated medical visits despite reassuring evaluations
- Severe disability inconsistent with objective findings
- Catastrophic interpretation of normal imaging variants
- Avoidance of work, activity, or rehabilitation due to fear
- Excessive focus on symptoms throughout the day
- Refusal to use an extremity despite no structural basis for nonuse
The diagnosis should be made carefully and usually by a qualified mental health professional, but physician experts should recognize the pattern.
Psychological Factors in Delayed and Failed Recovery
The AMA Guides Newsletter published a two-part article in 2019 by Garson Caruso and Les Kertay on psychological factors in delayed and failed recovery and unnecessary disability. The first part discusses psychological influences in delayed and failed recovery, and the second part discusses practical evaluation and treatment interventions.
The concept is useful in IME work because many cases involve a mismatch between the expected recovery from the physical injury and the claimant’s ongoing disability.
For example:
- A minor strain persists as disabling pain for years.
- Imaging shows age-typical degenerative findings, but the claimant interprets them as catastrophic injury.
- Pain ratings escalate despite time and treatment.
- Function declines even though tissue healing should have occurred.
- Passive treatment continues without active recovery.
- Work absence becomes entrenched.
- Fear of reinjury prevents rehabilitation.
- The claimant becomes increasingly identified with the sick role.
In these cases, psychological and behavioral factors may not be “secondary” in a simple sense. They may be active drivers of symptom persistence and disability.
Pain Severity Alone Does Not Explain Disability
A key IME principle is that pain intensity and disability are related but not identical. Two individuals with similar pathology may report very different pain levels and show very different function.
Differences may be influenced by:
- Prior mental health history
- Coping style
- Fear avoidance
- Pain catastrophizing
- Sleep quality
- Work satisfaction
- Family response
- Litigation or compensation context
- Expectations of recovery
- Cultural beliefs about pain
- Treatment messaging
- Opioid or sedative use
- Deconditioning
- Depression and anxiety
- Social isolation
- Financial stress
This does not mean the claimant is dishonest. It means that pain is a biopsychosocial experience. Tissue injury is only one part of the disability picture.
In persistent low back pain, psychosocial factors are widely recognized as important. A New England Journal of Medicine review on persistent low back pain notes that psychosocial factors should be routinely assessed and considered in treatment decisions.
“If the Pain Went Away, My Mood Would Be Normal”
This statement is common and may be sincere. The claimant may experience mood symptoms as reactive to pain. However, the IME physician should not stop there.
Helpful follow-up questions include:
- Did depression or anxiety exist before the injury?
- Was there prior counseling, medication, hospitalization, or psychiatric diagnosis?
- Were there prior periods of disability or chronic pain?
- Was there trauma history, substance use, or prior somatic symptom pattern?
- Did mood symptoms begin immediately after injury or after prolonged disability?
- Do mood symptoms fluctuate only with pain or also with life stress?
- Does anxiety lead to avoidance of activity?
- Does depression reduce rehabilitation participation?
- Does fear of movement worsen deconditioning?
- Are sleep problems driven by pain, anxiety, medication, or poor sleep hygiene?
- Is the claimant catastrophizing the meaning of symptoms?
- Are treatment providers reinforcing fear or disability?
The claimant’s formulation may be incomplete. Pain may worsen mood, but mood and anxiety may also amplify pain and impede recovery.
Fear Avoidance and Catastrophizing
Fear avoidance is one of the most important concepts in chronic musculoskeletal pain. A person may initially avoid activity because it hurts. Over time, they may begin avoiding activity because they fear pain means damage. This can produce deconditioning, stiffness, weakness, social withdrawal, work absence, and greater disability.
Catastrophizing refers to an exaggerated negative mental set about actual or anticipated pain. It may include rumination, helplessness, and magnification of threat.
In an IME, fear avoidance may appear as:
- “I cannot bend because I will rupture a disc.”
- “If I use my arm, I will permanently damage it.”
- “Any pain means I am reinjuring myself.”
- “I cannot return to work until I am pain-free.”
- “The MRI proves my spine is ruined.”
- “I need more injections before I can try therapy.”
These beliefs are not minor details. They may determine outcome more than the original sprain, strain, or degenerative finding.
Distinguishing Pain-Related Distress From Psychiatric Injury
Physician experts should distinguish several categories.
- Normal Distress From Pain
This includes understandable sadness, worry, frustration, and irritability related to pain and temporary limitation. It may not require a psychiatric diagnosis or impairment rating.
- Psychiatric Disorder Caused or Aggravated by Injury
A painful injury may precipitate or aggravate major depression, anxiety disorder, PTSD, adjustment disorder, substance use disorder, or other psychiatric conditions. This requires diagnostic evidence, chronology, severity assessment, and consideration of non-injury contributors.
- Pre-Existing Psychiatric Condition Affecting Recovery
Depression, anxiety, trauma history, substance use, or somatic symptom tendencies may predate injury and increase risk of delayed recovery, high pain reporting, or disability.
- Somatic Symptom Disorder or Pain Amplification
The claimant may have excessive thoughts, feelings, or behaviors related to symptoms, with disproportionate disability. This can coexist with a real physical diagnosis.
- Functional Neurologic or Behavioral Nonuse Pattern
Symptoms such as weakness, gait disturbance, tremor, nonuse of a limb, or severe disability may be inconsistent with recognized neurologic or orthopedic pathology. A neurologic or psychiatric evaluation may be needed.
These categories have different implications for causation, impairment, treatment, and prognosis.
What to Look for in the Medical Record
In IMEs involving pain with mood or anxiety symptoms, the record review should specifically examine:
- Prior mental health treatment
- Prior pain complaints
- Prior disability or work absence
- Medication history, including opioids, benzodiazepines, antidepressants, stimulants, and sleep medications
- Emergency department use
- Frequency of medical visits
- Imaging findings and how they were explained
- Provider language that may reinforce fear
- Compliance with therapy and home exercise
- Functional gains or lack thereof
- Work restrictions and whether they were advanced
- Litigation or claim milestones
- Inconsistent physical findings
- Pain behavior
- Substance use
- Sleep complaints
- Social stressors
- Objective evidence of tissue injury
- Objective evidence of healing or recovery
The goal is to determine whether the clinical course is medically expected or whether delayed recovery is being driven by nonstructural factors.
Examination Tips for Physician Experts
During the IME, it is useful to ask neutral, functional questions rather than confrontational ones.
Examples:
- “What do you believe is causing your pain?”
- “What do you think would happen if you increased activity?”
- “What activities are you avoiding because of fear of worsening the injury?”
- “What would need to change for you to return to work?”
- “Do you feel safe moving the injured area?”
- “What has your doctor told you about the imaging findings?”
- “What do you do on a good pain day compared with a bad pain day?”
- “Has your mood changed because of pain, or does stress also change the pain?”
- “Did you ever have anxiety or depression before this injury?”
- “What treatment has helped you become more active?”
These questions help identify beliefs, avoidance, functional capacity, and psychological barriers without accusing the claimant.
When to Recommend Psychological or Psychiatric Evaluation
A mental health evaluation may be appropriate when:
- Pain severity is disproportionate to objective findings
- Disability persists beyond expected tissue healing
- Depression or anxiety appears functionally significant
- The claimant has marked fear avoidance
- There is refusal to use a limb or participate in rehabilitation
- The presentation includes nonanatomic symptoms
- There is suspected somatic symptom disorder
- There is suspected functional neurologic disorder
- There is suicidal ideation or severe depression
- There is substance misuse
- There is a complex pre-existing psychiatric history
- The case involves permanent psychiatric impairment
- Treatment has failed despite adequate physical care
Recommending psychological evaluation should not be framed as “the pain is not real.” A better formulation is:
“Psychological evaluation is recommended to assess the role of mood, anxiety, fear avoidance, pain beliefs, and coping factors in the claimant’s persistent pain and delayed functional recovery.”
This is more accurate and less inflammatory.
How This Applies in Medicolegal Reporting
A strong IME report should avoid both extremes:
- “The claimant has pain, so the depression and anxiety are automatically injury-related.”
- “The claimant has anxiety and depression, so the pain is psychological.”
Neither statement is usually defensible.
A better report separates the issues:
- Physical diagnosis: What injury or condition is supported?
- Expected recovery: Is the current course medically expected?
- Mental health history: Were symptoms present before the injury?
- Current symptoms: What mood or anxiety symptoms are reported?
- Functional effect: How do these symptoms affect activity, work, and treatment?
- Causal direction: Did pain cause mood symptoms, did mood symptoms predate pain, or are both interacting?
- Alternative factors: Are fear avoidance, catastrophizing, deconditioning, litigation, work stress, or secondary gain issues present?
- Need for evaluation: Is psychiatric or psychological assessment needed?
- Impairment: Are mental health symptoms ratable or merely normative distress?
A useful report statement might read:
“The claimant reports depression and anxiety as secondary to pain. This is a plausible partial explanation, as chronic pain can worsen mood, sleep, and activity tolerance. However, the relationship between pain and psychological symptoms is bidirectional. The medical record also demonstrates fear avoidance, deconditioning, disproportionate disability compared with objective findings, and limited functional progress despite treatment. A psychological evaluation is recommended to assess whether mood, anxiety, pain beliefs, or somatic symptom features are contributing to delayed recovery.”
Practical Implications for Attorneys, Adjusters, and Physician Experts
For attorneys and claims professionals, pain-related mental health symptoms should be analyzed carefully. Important questions include:
- Did the claimant have prior depression, anxiety, trauma, or substance use?
- Did psychiatric symptoms begin before or after the injury?
- Are symptoms proportional to the physical condition?
- Is the claimant participating in active recovery?
- Has treatment improved function or only pain reporting?
- Are providers reinforcing fear or disability?
- Is the claimant pursuing pain elimination before return to function?
- Has a formal psychological evaluation been performed?
- Is the psychiatric diagnosis based on DSM criteria?
- Is there evidence of somatic symptom disorder, fear avoidance, or functional overlay?
- Does the claimant’s disability exceed what the physical findings explain?
For physician experts, the goal is to make the psychological component visible without overdiagnosing. The report should explain how psychological factors may affect pain perception, recovery, and disability, while acknowledging that pain and emotional distress can coexist with genuine physical injury.
Conclusion
Pain, depression, anxiety, and disability are often intertwined. A claimant may sincerely believe that mood and anxiety symptoms are entirely secondary to pain and would resolve if the pain disappeared. Sometimes that is partly correct. But in many IME cases, psychological and behavioral factors also influence pain intensity, recovery expectations, treatment response, and functional outcome.
The most defensible medicolegal analysis avoids simple cause-and-effect assumptions. It recognizes that pain can worsen mood, mood can worsen pain, and both can be shaped by fear avoidance, catastrophizing, prior psychiatric history, compensation context, deconditioning, and provider messaging.
For physician experts, the key is to distinguish normal emotional distress from diagnosable psychiatric impairment, identify psychosocial barriers to recovery, and recommend mental health evaluation when the clinical course suggests delayed or failed recovery beyond what the physical injury explains.
In medical-legal reporting, the central principle is clear: pain is real, psychological factors are real, and causation requires careful analysis of both.
References
- Caruso GM, Kertay L. Psychological factors in delayed and failed recovery and unnecessary disability, Part I. AMA Guides Newsletter. May/June 2019.
- Caruso GM, Kertay L. Psychological factors in delayed and failed recovery and unnecessary disability, Part II. AMA Guides Newsletter. July/August 2019.
- Von Korff M, Crane P, Lane M, et al. Chronic spinal pain and physical-mental comorbidity in the United States: results from the National Comorbidity Survey Replication. Pain. 2005;113(3):331-339.
- Polatin PB, Kinney RK, Gatchel RJ, Lillo E, Mayer TG. Psychiatric illness and chronic low-back pain: the mind and the spine—which goes first? Spine. 1993;18(1):66-71.
- Schmaling KB, Nounou ZA. Incident chronic spinal pain and depressive disorders: data from the National Comorbidity Survey. The Journal of Pain. 2019;20(4):481-488.
- American Psychiatric Association. Characteristics of Somatic Symptom Disorder. DSM-5 educational material.
- Henningsen P. Somatic symptom disorder, a new DSM-5 diagnosis of an old clinical problem. Journal of Psychosomatic Research. 2016.
- Deyo RA, Weinstein JN. Low back pain. New England Journal of Medicine. 2001;344:363-370.