In hospitals number of people were playing their different roles. The people in the hospital like nurses, doctors, ward men, ladies, patients, common people, etc. included.
It is complex to recognize someone without their uniform in hospitals. So hospital uniforms are more mandatory in every single hospital. Also, so many more people connected with the hospital and playing different roles. In such a situation it is very imped. To recognize the people by their uniform and it is an easy way to identify somebody at the workplace.
In hospital multi types of uniforms are used to role multiple works. So it is more necessary to design such uniforms very carefully. We care about the designs and small things in uniform so as long-lasting.