How does a congenital abdominal hernia develop in a male fetus?

Updated: Jul 23, 2019
  • Author: Assar A Rather, MBBS, MD, FACS; Chief Editor: John Geibel, MD, DSc, MSc, AGAF  more...
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Answer

Beginning at week 8 of gestation, the testis produces many male hormones. At the beginning of month 7, the gubernaculum begins a marked swelling influenced by a nonandrogenic hormone, probably a müllerian inhibiting substance. This results in expansion of the inguinal canal and the labioscrotal fold, forming the scrotum. The genitofemoral nerve also influences migration of the testis and gubernaculum into the scrotum under androgenic control.


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