<unk>  describes a condition wherein an organism is exceptionally small, and mostly occurs in the animal kingdom. In humans, it is sometimes defined as an adult height of less than , regardless of sex; the average adult height among people with<unk>  is , although some individuals with<unk>  are slightly taller. Disproportionate<unk>  is characterized by either short limbs or a short torso. In cases of proportionate<unk> , both the limbs and torso are unusually small. Intelligence is usually normal, and most have a nearly normal life expectancy. People with<unk>  can usually bear children, though there are additional risks to the mother and child dependent upon the underlying condition. The most common and recognisable form of<unk>  in humans (comprising 70% of cases) is the genetic disorder achondroplasia, whereby the limbs are diminutive. Growth hormone deficiency is responsible for most other cases. Treatment depends on the underlying cause. Those with genetic disorders can sometimes be treated with surgery or physical therapy. Hormone disorders can also be treated with growth hormone therapy before the child's growth plates fuse. Individual accommodations, such as specialized furniture, are often used by people with<unk> . Many support groups provide services to aid individuals and the discrimination they may face. In addition to the medical aspect of the condition, there are also social aspects. For a person with<unk> , height discrimination can lead to ridicule in childhood and discrimination in adulthood. In the United Kingdom, United States, Canada, Australia, and other English-speaking countries, labels that some people with<unk>  accept include dwarf (plural: dwarfs), little person (LP), or person of short stature (See Terminology). Historically, the term "midget" was used to describe dwarfs (primarily proportionate); however, this term is now often regarded as offensive.
Dwarfism
Primordial dwarfism
Brachyphalangy
Parastremmatic dwarfism
Micrognathism
Renal hypoplasia
Iniencephaly
Renal agenesis