Illness Behaviour

Introduction and Underlying Concepts of Illness Behaviour

Illness behaviour refers to the ways in which given individuals respond to bodily symptoms, monitor their internal states, interpret symptoms, and take remedial action. It describes how people experience bodily discomfort and communicate their state of health to the outside world. While disease is a pathological process altering biological functioning, illness is the subjective feeling of being unwell. Sickness, conversely, is the social role assumed by an individual suffering from an illness. A person may harbour a disease without experiencing illness, or exhibit illness behaviour without objective pathological findings.

Determinants of Illness Behaviour

Multiple psychosocial and biological factors dictate how a person reacts to bodily changes. Personal background, socioeconomic status, and previous health encounters shape symptom perception.

• Cultural beliefs: Shape what symptoms are considered normal versus abnormal.
• Socioeconomic status: Influences access to care and financial capability to seek help.
• Previous experience: Past personal or family health crises alter current pain thresholds and panic levels.
• Personality traits: High anxiety or neuroticism can amplify symptom reporting and health-seeking frequency.

Stages of the Illness Experience

The journey from feeling healthy to assuming the patient role follows a recognized sequence. Recognizing these phases helps nurses understand patient delays or anxieties.

1. Symptom experience: The individual notices a physical change, pain, or strange sensation.
2. Assumption of the sick role: The person accepts that they are sick and seeks validation from family or peers.
3. Medical care contact: The individual consults a healthcare provider for professional diagnosis and treatment.
4. Dependent-patient role: The patient undergoes treatment and transfers responsibility for recovery to the health team.
5. Recovery and rehabilitation: The patient relinquishes the sick role and returns to normal daily duties.

Normal vs. Abnormal Illness Behaviours

Illness behaviour exists on a spectrum. Normal behaviour aligns reasonably with the actual physical pathology present. The individual seeks appropriate help, adheres to treatment, and returns to normal roles once healed.

Abnormal illness behaviours involve persistent maladaptive ways of perceiving, evaluating, and acting in relation to health status, despite medical reassurance. This can manifest as hypochondriasis, where normal bodily sensations are catastrophized, or as denial, where clear, severe symptoms are completely ignored despite obvious danger to life.

Cultural and Societal Influences

Culture dictates how symptoms are expressed and tolerated. In some Nigerian communities, displaying physical pain openly is encouraged, while in others, stoicism is viewed as a sign of strength and maturity. Societal norms also determine which illnesses carry social stigma, such as mental health disorders or infectious diseases like HIV. Stigmatized conditions often lead patients to hide their symptoms, delay seeking care, or rely on alternative traditional practitioners in secret.

Nursing Assessment and Clinical Management

Evaluating illness behaviour requires active listening and careful observation during history taking. The nurse must assess whether the patient's coping mechanisms support healing or hinder recovery. Management involves validating the patient's feelings, providing clear health education, and correcting misconceptions. When abnormal illness behaviours like severe health anxiety or complete denial are identified, multidisciplinary collaboration involving clinical psychologists or medical social workers becomes necessary to support holistic patient care.