PubMed · 4379061
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R Rappaport. 1965-11-02. [Testis in abnormal position].. https://pubmed.ncbi.nlm.nih.gov/4379061/
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Male reproductive health has deteriorated in many ways during the last decades. The incidence of testicular cancer has rapidly increased in Europe and European-derived populations. Sperm concentrations have declined and sperm motility and morphology have worsened in many areas. Both adverse trends have been shown to be associated with year of birth. Older birth cohorts have better reproductive health than the younger generations. Incidences of cryptorchidism and hypospadias have also increased according to several studies. The reasons for secular trends are unknown, but the rapid pace of the change points to environmental causes. Endocrine disrupting chemicals have been hypothesized to influence male reproductive health.
For non-scrotal testes a distinction can be made between retractile testes (completely descended and normally developed but sometimes situated subcutaneously in the groin area), retained testes (testes cannot be brought into the scrotum or this can only be achieved using light manual pressure) and ectopic testes (lying outside of the descent trajectory). It is estimated that 0.7-0.8% of all boys have as yet undescended testes. The first few days after the birth are the most suitable for testing and registration, as then the cremaster reflex is absent. Registration should take place in both the youth healthcare file and in the 'growth book' for the parents. Retractile testes do not require treatment. There is no consensus concerning the treatment of (possible) acquired nonscrotal testes. For undescended testes the management depends on previous testes localisations. For ectopic testes and testes that have never been scrotal, a referral for surgical treatment should be made prior to the second birthday. Orchidopexy (a better description is orchidofuniculolysis followed by orchidopexy) is only justified in the case of testes which have never descended. In the case of a clear indication, the general practitioner should make a prompt referral (before the second birthday) and in other cases assurance should be provided and an expectant policy adopted until puberty.
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