n. a reduced number of spermatozoa in the semen (see seminal analysis). In oligospermia there are less than 20 million spermatozoa per ml with poor motility (asthenospermia) and often including many bizarre and immature forms (teratospermia). Treatment is directed to any underlying cause (such as varicocele). See also andrology, infertility.
Subjects: Medicine and Health.