Employers may not impose unreasonable restrictions on restroom use, and employees should not take an excessive amount of time during bathroom breaks. A worker's need to access the restroom can depend on several factors, including fluid intake, air temperature, medical conditions and medications.

In most developed legal systems, including the U.S. and UK in 2026, it is generally illegal for an employer to deny workers access to a bathroom. In the United States, OSHA (Occupational Safety and Health Administration) regulations mandate that employers must provide "prompt access" to sanitary facilities. While an employer can impose "reasonable restrictions"—such as asking a worker on an assembly line to wait for a brief moment until a relief person arrives—they cannot prevent a worker from using the restroom to the point of causing health issues or distress. Regarding the general public, "Right to Restroom" laws vary by state and city. For example, some states require businesses that serve food to allow the public to use their bathrooms, while others only require it for paying customers. However, under the Americans with Disabilities Act (ADA) and similar civil rights laws, a business cannot unfairly deny access to someone with a medical condition. In summary: while not always a universal "right" for every passerby on the street, it is a strictly protected right for employees in the workplace.