1. Regarding varicoceles, which of the following is (are) true?
(X-type question - select all correct answers)
A) Unilateral varicocele is more common on the left side.
B) Associated with infertility.
C) Decrease in size during the Valsalva maneuver.
D) Occurs in approximately 50 of adult males.
E) Can be associated with scrotal pain.