Common Occupational Diseases in Enterprises and Early Prevention Strategies | Wellbeing

1. What is an Occupational Disease?

An occupational disease is an illness that arises due to the harmful effects of occupational conditions on an employee. According to the 2015 Law on Occupational Safety and Health (OSH Law), an illness is officially recognized as an occupational disease when there is a clear correlation between workplace hazards and the resulting pathology.

On February 9, 2023, the Ministry of Health issued Circular No. 02/2023/TT-BYT (amending Circular No. 15/2016/TT-BYT), officially adding occupational COVID-19 to the list of occupational diseases covered by social insurance. Consequently, Vietnam currently recognizes 35 occupational diseases eligible for statutory social insurance benefits, encompassing conditions caused by noise, vibration, dust, chemicals, microclimates, and poor working postures.

Enterprises must pay close attention because occupational diseases often progress silently over many years, leading to severe consequences such as permanent disability, lifelong sequelae, and heavy burdens on families and society. Early prevention is not just a legal responsibility; it yields clear economic benefits: reducing sick leave, boosting productivity, and elevating the corporate brand image.

2. Common Occupational Diseases in Enterprises

2.1. Noise-Induced Hearing Loss (NIHL)

This is the most prevalent occupational disease in manufacturing plants, mechanical workshops, construction sites, and the textile industry. Prolonged exposure to noise levels exceeding 85 dB(A) over an 8-hour shift causes irreversible hearing damage. Initial symptoms include tinnitus (ringing in the ears) and mild hearing loss, eventually progressing to occupational deafness. Pursuant to QCVN 24:2016/BYT, the maximum permissible noise level is 85 dB(A) for 8 hours; exceeding this threshold without protective measures will inevitably lead to occupational disease.

2.2. Vibration-Induced Diseases

Commonly found among workers operating drills, vibrating hammers, compactors, or driving heavy machinery. This condition causes vasomotor disorders, joint pain, muscle atrophy, and damage to bones and peripheral nerves (e.g., Hand-Arm Vibration Syndrome). QCVN 27:2016/BYT clearly stipulates permissible vibration acceleration limits to prevent occupational vibration diseases.

2.3. Occupational Respiratory Diseases

Highly prevalent in the mining, stone processing, cement, ceramics, and construction industries. The accumulation of silica dust in the lungs causes fibrosis, impaired respiratory function, and an increased risk of lung cancer (Silicosis). This is an incurable occupational disease that leaves severe, lifelong sequelae.

2.4. Chemical-Induced Diseases and Occupational Poisoning

This category includes poisoning from benzene, lead, mercury, and pesticides. It is frequently encountered in chemical plants, printing shops, battery manufacturing, painting, and agriculture. Symptoms range from fatigue and dizziness to severe damage to the liver, kidneys, blood, and nervous system.

2.5. Postural Musculoskeletal Disorders (MSDs)

Extremely common among office workers, garment workers, assembly line workers, and drivers. Prolonged or repetitive sitting/standing postures induce spinal degeneration, herniated discs, arthritis, and Carpal Tunnel Syndrome (CTS).

2.6. Occupational Stress and Psychological Disorders

Occupational stress and related psychological disorders are increasingly prevalent in modern work environments, especially in high-pressure sectors like manufacturing, customer service, IT, and shift work. Common symptoms include chronic fatigue, anxiety, depression, insomnia, lack of concentration, irritability, and reduced performance. Without timely intervention, these can escalate into generalized anxiety disorders, severe depression, burnout syndrome, or even self-harming behaviors.

3. The Impact of Occupational Diseases on Workers and Enterprises

Occupational diseases do not merely cause physical pain and reduce the quality of life; they often lead to permanent loss of working capacity. Many victims are forced into early retirement, relying on lifelong social insurance benefits. For enterprises, the costs associated with compensation, sick leave, recruitment of replacements, and lost productivity can amount to hundreds of millions of VND annually. According to reports from the Ministry of Labor, Invalids and Social Affairs, occupational diseases are a primary factor diminishing the competitive edge of Vietnamese enterprises.

4. Strategies to Prevent Occupational Diseases

While occupational diseases are generally difficult to treat, they are entirely preventable if appropriate solutions are implemented synchronously. To effectively control and limit the risk of infection, the following 05 key preventive measures (Hierarchy of Controls) must be deployed in the production environment:

4.1. Engineering Controls

Engineering controls play a decisive role in prevention by focusing on improving production processes to minimize or eliminate hazards at the source. Enterprises must innovate technologies toward clean production—such as designing machinery that limits noise, vibration, and dust. Specific solutions include using closed automated lines, installing exhaust ventilation, dust extraction, and wet methods to suppress dust. Furthermore, substituting hazardous chemicals with safer alternatives (e.g., using benzene homologues instead of benzene) makes the workplace significantly safer. Under the 2015 OSH Law, periodic occupational environmental monitoring is a mandatory engineering control.

4.2. Medical Surveillance

Medical measures emphasize the monitoring and protection of workers' health. Pre-employment health screenings help assign jobs suited to an individual's health status, filtering out those highly susceptible to certain hazards. Simultaneously, periodic health check-ups facilitate the early detection of occupational diseases, enabling timely treatment, rehabilitation, and, if necessary, the removal of the employee from the toxic environment. As per Article 21 of the 2015 OSH Law, check-ups must occur at least annually (or bi-annually for hazardous jobs), aligning with Circular 28/2016/TT-BYT on screening for the 34 recognized occupational diseases.

4.3. Personal Protective Measures

Personal measures are pivotal and require active participation from both employers and employees. Enterprises must provide adequate Personal Protective Equipment (PPE)—such as specialized clothing, hard hats, safety goggles, footwear, gloves, and respirators—complying with state standards. Workers must be trained on proper PPE usage. Additionally, personal health care—maintaining a balanced diet, proper rest breaks, staying hydrated, and seeking early medical consultation for abnormal signs—contributes significantly to prevention.

4.4. Administrative & Organizational Controls

These controls support prevention by establishing a safe regulatory framework. Enterprises must establish OSH rules, organize logical work-rest schedules, and integrate therapeutic gymnastics. Applying Ergonomics in labor organization—such as scientifically arranging workstations and appropriately assigning tasks—helps mitigate risks from poor posture. Strict compliance boosts productivity and quality. Per Articles 15, 72, 75, 76, and 80 of the 2015 OSH Law, this includes developing annual safety plans and establishing an OSH department.

4.5. Information, Education & Training

Communication and education are vital for raising awareness and changing behaviors. Enterprises should collaborate with regulatory bodies to educate workers on hazards and OSH measures through flyers, posters, or mass media. Organizing periodic OSH training sessions (pursuant to Articles 13 and 14 of the 2015 OSH Law) helps employees fully grasp their personal responsibilities in disease prevention, thereby fostering a sustainable corporate safety culture.