Roles and Responsibilities of Industrial Physicians

1. Introduction

An industrial physician is a medical professional responsible for protecting and promoting the health, safety and well-being of employees in the workplace. The role goes beyond treating ordinary illnesses. Industrial physicians assess occupational hazards, work-related diseases, workplace injuries, mental-health risks, fitness for work, rehabilitation and preventive health measures.

In Japan, the role is particularly important under the Industrial Safety and Health Act, which requires certain workplaces to appoint an occupational physician and imposes duties concerning workplace health management.

2. Major Roles of Industrial Physicians

A. Workplace Health Management

The industrial physician advises the employer on maintaining a healthy working environment. This includes:

• Identifying health hazards.
• Examining workplace conditions.
• Advising on ventilation, lighting, noise and temperature.
• Monitoring exposure to hazardous substances.
• Recommending preventive measures.
• Participating in occupational-health committees.

The physician should focus on prevention rather than only treatment after an employee becomes ill.

B. Medical Examinations

Industrial physicians play an important role in employee health examinations.

They may be involved in:

• Periodic medical examinations.
• Pre-employment health examinations.
• Special examinations for hazardous work.
• Follow-up of abnormal findings.
• Assessment of employees' health conditions.
• Recommendations concerning necessary medical treatment.

The purpose is to detect occupational and non-occupational health problems at an early stage.

C. Fitness-for-Work Assessment

An industrial physician may advise whether an employee is medically capable of performing particular work.

For example, where an employee has:

• Severe fatigue,
• A serious medical condition,
• Psychological difficulties,
• Exposure-related illness, or
• Limitations affecting safety,

the physician may recommend restrictions, temporary reassignment, reduced working hours or leave.

The assessment should be based on medical evidence and the actual demands of the job, while respecting employee privacy.

D. Prevention of Overwork and Work-Related Illness

A significant responsibility is identifying employees who may be exposed to excessive working hours or workload.

The physician may:

1. Review working-hour information.
2. Interview employees experiencing excessive workload.
3. Assess physical and psychological condition.
4. Recommend workload reduction.
5. Recommend medical consultation.
6. Advise management about preventive measures.

This is especially important in Japan because excessive working hours have historically been associated with karoshi (death from overwork) and work-related mental-health problems.

E. Mental Health Management

Modern industrial medicine includes substantial responsibility for psychological health.

Industrial physicians may help employers establish:

• Stress-management systems.
• Mental-health consultation mechanisms.
• Return-to-work programmes.
• Measures against excessive psychological workload.
• Prevention of workplace harassment-related health problems.
• Support for employees returning after mental-health leave.

However, an industrial physician must distinguish between medical advice and management decisions. The physician provides professional medical recommendations; the employer remains responsible for implementing workplace policies.

F. Stress Check Programme

In Japan, industrial physicians can have an important role in the statutory Stress Check Programme.

Their responsibilities can include:

• Advising on implementation.
• Reviewing workplace stress information.
• Supporting employees with high-stress results.
• Conducting or supervising interviews where legally appropriate.
• Advising on workplace improvements.

The objective is not simply to identify stressed individuals but also to identify workplace factors contributing to stress.

G. Prevention of Occupational Accidents

Industrial physicians assist in preventing workplace accidents by identifying health-related risks.

For example:

• Fatigue may increase accident risk.
• Poor eyesight may affect machine operation.
• Hearing impairment may affect communication.
• Medication side effects may affect safety.
• Excessive stress may affect concentration.

The physician can therefore recommend appropriate preventive measures.

H. Occupational Disease Prevention

Industrial physicians monitor diseases connected with workplace exposure, such as those arising from:

• Chemicals,
• Dust,
• Noise,
• Radiation,
• Heat,
• Biological hazards,
• Ergonomic conditions.

They may recommend changes to work processes, protective equipment, medical surveillance or removal from harmful exposure.

I. Return-to-Work Support

When an employee returns after illness or mental-health leave, the industrial physician may assess:

• Whether the employee is medically capable of returning.
• Whether work restrictions are necessary.
• Whether working hours should initially be reduced.
• Whether duties should be modified.
• Whether a gradual return is appropriate.

The physician may also monitor the employee after returning to work.

J. Cooperation with the Employer and Health-and-Safety Personnel

Industrial physicians normally work with:

• Employers,
• HR departments,
• Safety managers,
• Nurses,
• Occupational-health staff,
• Labour unions,
• Health and Safety Committees.

However, medical confidentiality must be maintained. Employers generally need only the work-related medical information necessary for appropriate workplace measures, rather than unnecessary private medical details.

3. Responsibilities of Industrial Physicians

The principal responsibilities can be summarised as follows:

4. Legal and Judicial Importance

Industrial physicians' responsibilities have been clarified through Japanese employment and occupational-health litigation. Courts have repeatedly examined the employer's duty to protect employees' health and safety, particularly in cases involving excessive working hours, mental illness, workplace stress and death.

1. Kawasaki Heavy Industries, Ltd. v. Employee

The Japanese Supreme Court recognised the importance of an employer taking appropriate measures where an employee's health condition and working circumstances create a serious risk.

Principle: Employers have responsibilities concerning employee health and safety, and occupational-health mechanisms can be important in identifying and preventing health risks.

2. Dentsu Case – Supreme Court, 2000

This is one of Japan's most important cases concerning death associated with excessive working hours.

The employee worked extremely long hours and subsequently died by suicide. The Supreme Court recognised the employer's responsibility in circumstances where excessive workload and working conditions created foreseeable risks to the employee's mental health.

Importance for industrial physicians:
Industrial physicians may play an important preventive role by identifying excessive workload, psychological deterioration and the need for intervention.

3. Tokyo Electric Power Company Case

Japanese courts have considered employer responsibility where workplace circumstances contribute to serious psychological health consequences.

Principle: Employers must take reasonable measures to protect employees when they become aware, or should reasonably become aware, of significant health risks.

Importance: Industrial physicians can assist employers in identifying such risks and recommending appropriate measures.

4. Toshiba Corporation Case

The case concerned mental-health problems and the employer's responsibility toward an employee.

The courts considered the relationship between workplace circumstances, psychological health and the employer's obligations.

Importance for industrial physicians:
Medical assessments and workplace information can be important when determining whether continued work or particular working conditions pose health risks.

5. Ota Ward Office Case

Japanese courts have addressed situations involving psychological illness and workplace circumstances.

Principle: Where an employer has sufficient information indicating a serious health risk, appropriate protective measures may become necessary.

Role of industrial physician: The physician may identify the employee's condition and recommend work restrictions, leave or other preventive measures.

6. Supreme Court – Karoshi/Overwork-Related Cases

Japanese Supreme Court jurisprudence concerning work-related death has emphasised the importance of considering working hours, workload and foreseeable health consequences.

Importance for industrial physicians: Monitoring excessive working hours and providing timely medical advice can contribute to prevention of serious occupational-health outcomes.

5. Industrial Physician and Employer: Different Responsibilities

The industrial physician should not simply act as an agent of management.

Industrial physician

• Provides medical expertise.
• Identifies health risks.
• Conducts or supervises health assessments.
• Gives professional recommendations.
• Protects medical confidentiality.
• Advises on preventive measures.

Employer

• Organises the workplace.
• Makes employment decisions.
• Implements safety measures.
• Controls working hours and workload.
• Provides necessary resources.
• Takes appropriate action based on occupational-health advice.

Thus, medical judgment and managerial judgment should remain distinct, even though they must work together.

6. Importance of Independence

An industrial physician should be able to provide professional advice without improper pressure from management.

For example, if an employee is suffering from severe stress caused by excessive workload, the physician should medically assess the situation even if management wants the employee to continue working normally.

Professional independence is particularly important where:

• The employee's health is deteriorating.
• Excessive working hours are involved.
• There is a risk of occupational disease.
• Workplace harassment is alleged.
• An employee is returning after mental-health leave.
• Continued work may create a safety risk.

7. Confidentiality and Personal Data

Industrial physicians handle highly sensitive medical information.

Therefore, they should:

• Keep medical information confidential.
• Avoid unnecessary disclosure.
• Share only information required for workplace health measures.
• Secure medical records.
• Explain the purpose of medical assessments to employees.
• Follow applicable privacy and occupational-health laws.

Medical confidentiality is essential for maintaining employee trust.

8. Role in Modern Workplaces

The industrial physician's role has expanded beyond traditional physical safety.

Modern occupational health includes:

Physical health → Mental health → Stress → Fatigue → Harassment → Remote work → Ergonomics → Work-life balance → Return to work → Prevention of overwork.

Therefore, industrial physicians increasingly function as preventive health professionals and workplace-health advisers, rather than merely workplace doctors.

9. Conclusion

Industrial physicians have a central role in protecting employees from occupational and work-related health risks. Their responsibilities include health examinations, workplace-health assessment, prevention of occupational disease, overwork management, mental-health support, stress management, fitness-for-work assessments, accident prevention and return-to-work programmes.

Japanese case law concerning excessive working hours and work-related mental illness demonstrates the importance of early identification of health risks and appropriate employer intervention. The industrial physician provides the medical expertise, while the employer has the responsibility to take appropriate organisational and workplace measures.