Now, you may not have heard of heightism before, but it's like other 'isms'-like racism, sexism, ageism and other 'isms' that highlight a particular kind of discrimination or unequal treatment that people experience.
Heightism is prejudice or discrimination against individuals based on height. In principle, it refers to discriminatory treatment against individuals whose height is not within the normal acceptable range of height in a population. Height discrimination is most common against shorter than average men and is generally accepted and ignored.