<unk>  is a genetic disorder found in males, characterized by abnormally small testes; it is the opposite of<unk> , which is characterized by abnormally large testes. The condition is associated with (and often secondary to) a number of other genetic disorders, including Klinefelter's Syndrome and Prader-Willi syndrome, as well as other multiple malformation disorders. The degree of abnormality (or otherwise) of the testes can be determined by the use of an orchidometer. In addition,<unk>  may also occur as a result of shrinkage or atrophy of the testis due to infections like mumps. It is distinct from testicular atrophy caused as a result of hormone therapy or injury.
Microorchidism
Polyorchidism
Micrognathism
Macroorchidism
Loxoscelism
Anisomastia
Hyperdontia
Maxillary hypoplasia