Sometimes people do not have a disability, but people believe that they do. If they are discriminated against based on that belief (for example, if they are not hired, or not allowed to participate in a program), they may be able to file a complaint under the ADA.
For example, Jenna has noticeable burn scars on her face. Her scars have no impact on major life activities. However, Jenna is turned away from a job interview because of her facial scars. The employer believes her “condition will make her unable to work with customers." Under the ADA, Jenna would be protected from discrimination because her employer regarded her scars as a disabling condition.
For additional information, take a look at the following resource: