The incidence of inguinal hernia and hydrocele is higher in boys with cystic fibrosis (CF) and their male siblings than is reported for the normal population. The relation, of these findings to the lesions of epididymis and vas deferens regularly found in male subjects with CF is unknown.
Wang C, Kwok S, Edelbrock H. Inguinal Hernia, Hydrocele, and Other Genitourinary AbnormalitiesIn Boys With Cystic Fibrosis and Their Male Siblings. Am J Dis Child. 1970;119(3):236–237. doi:10.1001/archpedi.1970.02100050238009