An occupational disease is any chronic ailment that occurs as a result of work or occupational activity. It is an aspect of
occupational safety and health Occupational safety and health (OSH), also commonly referred to as occupational health and safety (OHS), occupational health, or occupational safety, is a multidisciplinary field concerned with the safety Safety is the state of being "safe ...
. An occupational disease is typically identified when it is shown that it is more prevalent in a given body of workers than in the general population, or in other worker populations. The first such disease to be recognised,
squamous-cell carcinoma Squamous cell carcinomas (SCCs), also known as epidermoid carcinomas, comprise a number of different types of cancer Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of th ...
of the
scrotum The scrotum or scrotal sac is an Anatomy, anatomical male reproductive structure located at the base of the penis that consists of a suspended dual-chambered sac of skin and smooth muscle. It is present in most terrestrial male mammals. The scr ...

, was identified in
chimney sweep A chimney sweep is a person who clears ash Ash or ashes are the solid remnants of fire BBQ. Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction Produ ...
boys by
Sir Percival Pott
Sir Percival Pott
in 1775. Occupational hazards that are of a traumatic nature (such as falls by roofers) are not considered to be occupational diseases. Under the law of
workers' compensation Workers' compensation or workers' comp is a form of insurance providing wage replacement and medical benefits to employees injured in the course of employment in exchange for mandatory relinquishment of the employee's right to sue his or her emp ...
in many jurisdictions, there is a presumption that specific disease are caused by the worker being in the work environment and the burden is on the employer or insurer to show that the disease came about from another cause. Diseases compensated by national workers compensation authorities are often termed occupational diseases. However, many countries do not offer compensations for certain diseases like musculoskeletal disorders caused by work (e.g. in Norway). Therefore, the term work-related diseases is utilized to describe diseases of occupational origin. This term however would then include both compensable and non-compensable diseases that have occupational origins. In a landmark study published by the
World Health Organization The World Health Organization (WHO) is a specialized agency of the United Nations United Nations Specialized Agencies are autonomous organizations working with the United Nations and each other through the co-ordinating machinery of the Unit ...
and the
International Labour Organization The International Labour Organization (ILO) is a United Nations agency whose mandate is to advance social and economic justice through setting international labour standards. Founded in October 1919 under the League of Nations, it is the fir ...
in 2021, 745,000 fatalities from ischemic heart disease and stroke events in 2016 were attributed to exposure to long working hours. With these UN estimates, the global burden of work-related cardiovascular diseases has been quantified for the first time.


Some well-known occupational diseases include:

Lung diseases

Occupational lung diseases include
asbestosis Asbestosis is long-term inflammation Inflammation (from la, inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogen In biology Biology is the natural science that studies life and ...

asbestos Asbestos (pronounced: or ) is a naturally occurring fibrous silicate mineral Silicate minerals are rock-forming mineral In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fair ...
miners and those who work with friable asbestos insulation, as well as black lung (
coalworker's pneumoconiosis Coal workers' pneumoconiosis (CWP), also known as black lung disease or black lung, is caused by long-term exposure to coal dustCoal dust is a fine powdered form of coal Coal is a combustible black or brownish-black sedimentary rock, forme ...
) among coal miners, silicosis among miners and quarrying and tunnel operators and byssinosis among workers in parts of the cotton textile industry. Occupational asthma has a vast number of Occupational asthma#Occupations at risk, occupations at risk. Bad indoor air quality may predispose for diseases in the lungs as well as in other parts of the body.

Skin diseases

Occupational skin diseases are ranked among the top five occupational diseases in many countries. Occupational skin diseases and conditions are generally caused by chemicals and having wet hands for long periods while at work. Eczema is by far the most common, but urticaria, sunburn and skin cancer are also of concern.HSE (Health and Safety Executive of Great Britain) Skin at work
Retrieved on June 20, 2009
Contact dermatitis due to irritation is inflammation of the skin which results from a contact with an irritant. It has been observed that this type of dermatitis does not require prior sensitization of the immune system. There have been studies to support that past or present atopic dermatitis is a risk factor for this type of dermatitis. Common irritants include detergents, acids, alkalies, oils, organic solvents and reducing agents. The acute form of this dermatitis develops on exposure of the skin to a strong irritant or caustic chemical. This exposure can occur as a result of accident at a workplace. The irritant reaction starts to increase in its intensity within minutes to hours of exposure to the irritant and reaches its peak quickly. After the reaction has reached its peak level, it starts to heal. This process is known as decrescendo phenomenon. The most frequent potent irritants leading to this type of dermatitis are acids and alkaline solutions. The symptoms include redness and swelling of the skin along with the formation of blisters. The chronic form occurs as a result of repeated exposure of the skin to weak irritants over long periods of time. Clinical manifestations of the contact dermatitis are also modified by external factors such as environmental factors (mechanical pressure, temperature, and humidity) and predisposing characteristics of the individual (age, sex, ethnic origin, preexisting skin disease, atopic skin diathesis, and anatomic region exposed. Another occupational skin disease is Glove related hand urticaria. It has been reported as an occupational problem among the health care workers. This type of hand urticaria is believed to be caused by repeated wearing and removal of the gloves. The reaction is caused by the latex or the nitrile present in the gloves. High-risk occupations include: * Hairdressing * Catering * Healthcare * Printing * Metal machining * Motor vehicle repair * Construction

Other diseases of concern

*Overuse syndrome among persons who perform repetitive or forceful movements in constrictive postures *Carpal tunnel syndrome among persons who work in the poultry industry and information technology *Computer vision syndrome among persons using information technology for hours *Lead poisoning affecting workers in many industries that processed or employed lead or lead compounds The List of Occupational Diseases of the International Labour Organization (ILO) also includes "Mental disorder, mental and behavioral Disorder (medicine), disorders associated with exposure to risk factors",


Donald Hunter (physician), Donald Hunter in his classic history of occupational diseases discusses many example of occupational diseases. They include: * Phossy jaw among the London matchgirls strike of 1888, London matchgirls * Radiation sickness among some persons who had been working in the nuclear industry * Radium jaw among the Radium Girls * Squamous cell carcinoma of the skin of the scrotum among chimney sweeps (see Chimney sweeps' carcinoma) Bernardino Ramazzini in his book, dated 1700, De Morbis Artificum Diatriba, outlined the health hazards of chemicals, dust, metals, repetitive or violent motions, odd postures, and other disease-causative agents encountered by workers in more than fifty occupations.


Prevention measures include avoidance of the irritant through its removal from the workplace or through technical shielding by the use of potent irritants in closed systems or automation, irritant replacement or removal and personal protection of the workers. In order to better prevent and control occupational disease, most countries revise and update their related laws, most of them greatly increasing the penalties in case of breaches of the occupational disease laws. Occupational disease prevention, in general legally regulated, is part of good supply chain management and enables companies to design and ensure supply chain social compliance schemes as well as monitor their implementation to identify and prevent occupational disease hazards.

See also

*Industrial and organizational psychology *Occupational health psychology *Occupational medicine *Occupational safety and health


External links

{{DEFAULTSORT:Occupational Disease Labour law Occupational diseases,