Microorchidism

Congenital human disease

Microorchidism is a genetic disorder found in males, characterized by abnormally small testes; it is the opposite of macroorchidism, which is characterized by abnormally large testes. The condition is associated with 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 of the testes can be determined by the use of an orchidometer. In addition, Microorchidism 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.

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