A stereotype is a widely held fixed opinion or idea about a person or group of people, often based on limited or inaccurate information. It is a standardized mental picture that is held in common by members of a group and that represents an oversimplified opinion, prejudiced attitude, or uncritical judgment. Stereotypes can be positive or negative, but they are often unfair and untrue. Stereotyping can lead to discrimination and prejudice, as people may treat others based on their perceived group membership rather than their individual characteristics. Stereotypes can be challenged by learning about and interacting with people from different backgrounds, and by recognizing and questioning our own assumptions and biases.