[Maldescensus testis, therapy and prognosis].

Since histologic changes are found in undescended testes after the second year of life, treatment is necessary. Often therapy with human choriongonadotrophin is successful, otherwise operative treamtnet is indicated. Infertility at a high rate is found in boys treated for maldescence of the testicles in later childhood. Therapy before the age of two years improves the prognosis.