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# The reaction to illness: sick role, illness behavior and hospitalization

- Concept

Falling ill changes a person's role, behavior and feelings. Knowing the usual reactions helps care for patients with patience.

Updated Nov 5, 2026

## Key points

- Sick role rights: exempt from normal duties (in proportion to the illness) and not blamed for being ill.
- Sick role duties: want to get well and seek and cooperate with competent care.
- Illness behavior varies with culture, gender, personality, past experience and access to care.
- Regression (dependent, childlike behavior) is the typical defense of hospitalized patients.
- Abnormal illness behavior (Pilowsky): a way of responding to one's health that is out of proportion to the disease and persists despite a clear explanation.

## What it is

Talcott Parsons (1951) described the sick role, a social role with two rights and two duties. David Mechanic (1962) called illness behavior the different ways people notice, interpret and act on symptoms. Hospitalization adds loss of control, privacy and routine, and patients often react with anxiety, regression or anger. These reactions are expected; they become a problem only when out of proportion or persistent.

## Key facts

- Common reactions to hospitalization: anxiety, fear of death or disability, loss of control, shame about the body, sleep loss, anger and dependence.
- Critiques of the sick role: it fits acute illness; in chronic illness the patient cannot simply ‘get well’, and work or money may force people to keep their duties.
- Older patients, those with sensory loss and those in intensive care are at risk of delirium, which can be mistaken for a ‘difficult’ reaction.
- Secondary gain (attention, rest, compensation) can keep illness behavior going without any deliberate deception.

## Symptoms out of proportion: the classic distinction

| Picture | Symptoms produced on purpose? | Motive |
| --- | --- | --- |
| [Somatic symptom disorder](https://durgical.com/en/conditions/somatic-symptom-and-illness-anxiety-disorders/) | No | Not a motive: distressing symptoms with excessive thoughts and worry about them |
| [Conversion disorder (functional neurological)](https://durgical.com/en/conditions/functional-neurological-symptom-disorder/) | No | Not a motive: neurological symptoms incompatible with a neurological disease |
| [Factitious disorder](https://durgical.com/en/conditions/factitious-disorder-and-malingering/) | Yes | Internal: to take on the patient role |
| Malingering | Yes | External: money, leave from work, avoiding duty, drugs |

## Clinical notes

- A regressed or demanding inpatient usually responds to clear information, predictable routines and small choices that return a sense of control.
- A sudden change in behavior in a hospitalized older adult calls for checking for delirium before labelling it psychological.

## Memory aid

Sick role: two rights (Rest, no Reproach) and two duties (Recover, Request help).

## Test yourself

Think of the answer, then tap the question to see it.

## What are the rights of Parsons' sick role?

To be exempt from normal duties in proportion to the illness, and not to be blamed for being ill.

## Which defense mechanism is most typical of hospitalized patients?

Regression: more dependent, childlike behavior under the stress of illness.

## How does factitious disorder differ from malingering?

In both the symptoms are produced on purpose; in factitious disorder the motive is internal (the patient role), in malingering it is an external gain.

## Why does the sick role fit chronic illness poorly?

Because the patient cannot simply recover and return to duties; the role was described for acute, temporary illness.

[Add to my cards (4)](https://durgical.app/estudiar/?add=/en/behavioral-science/the-reaction-to-illness-sick-role-illness-behavior-and-hospitalization/)

## Elsewhere in DurgiPedia

- [The medical interview: rapport, open questions and listening](https://durgical.com/en/clinical-exam/the-medical-interview-rapport-open-questions-and-listening/)
- [Interviewing in special situations: interpreters and breaking bad news](https://durgical.com/en/clinical-exam/interviewing-in-special-situations-interpreters-and-breaking-bad-news/)

## Connections

## Related 7

- [Immature defense mechanisms](https://durgical.com/en/behavioral-science/immature-defense-mechanisms/)
- [Defense mechanisms: what they are and how they are ranked](https://durgical.com/en/behavioral-science/defense-mechanisms-what-they-are-and-how-they-are-ranked/)
- [Models of the doctor–patient relationship and patient-centred care](https://durgical.com/en/behavioral-science/models-of-the-doctor-patient-relationship-and-patient-centred-care/)
- [Difficult encounters: anger, demands and boundaries](https://durgical.com/en/behavioral-science/difficult-encounters-anger-demands-and-boundaries/)
- [Chronic pain: fear-avoidance, catastrophizing and psychological treatment](https://durgical.com/en/behavioral-science/chronic-pain-fear-avoidance-catastrophizing-and-psychological-treatment/)
- [Psychological factors in physical illness](https://durgical.com/en/behavioral-science/psychological-factors-in-physical-illness/)
- [Adherence: what it is and why it fails](https://durgical.com/en/behavioral-science/adherence-what-it-is-and-why-it-fails/)

## Related conditions 4

- [Somatic symptom and illness anxiety disorders](https://durgical.com/en/conditions/somatic-symptom-and-illness-anxiety-disorders/)
- [Factitious disorder and malingering](https://durgical.com/en/conditions/factitious-disorder-and-malingering/)
- [Functional neurological symptom disorder (conversion disorder)](https://durgical.com/en/conditions/functional-neurological-symptom-disorder/)
- [Delirium](https://durgical.com/en/conditions/delirium/)

[← All of behavioral science](https://durgical.com/en/behavioral-science/)

Educational content on behavior and the clinical relationship; not a diagnostic or treatment guide and no substitute for assessment by a health professional. If you or someone near you is at risk, seek help now from an emergency service or a mental-health helpline.

Sources: [Assessing Abnormal Illness Behavior in Post-Stroke Patients: A Preliminary Report](https://pmc.ncbi.nlm.nih.gov/articles/PMC4201792/) (Indian Journal of Psychological Medicine, via PubMed Central (US National Library of Medicine), 2014); [Factitious Disorder Imposed on Self](https://www.msdmanuals.com/professional/psychiatric-disorders/somatic-symptom-and-related-disorders/factitious-disorder-imposed-on-self) (MSD Manual Professional Edition, 2026).

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Representative model, for educational purposes only.

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Source: https://durgical.com/en/behavioral-science/the-reaction-to-illness-sick-role-illness-behavior-and-hospitalization/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/behavioral-science/the-reaction-to-illness-sick-role-illness-behavior-and-hospitalization/