Unions are organizations that negotiate with corporations, businesses and other organizations on behalf of union members.
There are trade unions, which represent workers who do a particular type of job, and industrial unions, which represent workers in a particular industry.
Unions act as a legal representative for workers in the workplace and as such they represent workers who are injured in the workplace.
If you are a member of a union contact your union for representation services in regards to your work injury.
There are unions in every common-law democratic country in the world.
The above logos are a sampling of some state/provincial associations in countries where unions are. I also included the International Labour Organization - ILO which is a branch of the United Nations - UN.
Unions represent and protect the rights of workers,
as well as workers who are injured at work.