Changes

Without and with Valsalva maneuver.<ref name="JamadarJacobson2006">{{cite journal|last1=Jamadar|first1=David A.|last2=Jacobson|first2=Jon A.|last3=Morag|first3=Yoav|last4=Girish|first4=Gandikota|last5=Ebrahim|first5=Farhad|last6=Gest|first6=Thomas|last7=Franz|first7=Michael|title=Sonography of Inguinal Region Hernias|journal=American Journal of Roentgenology|volume=187|issue=1|year=2006|pages=185–190|issn=0361-803X|doi=10.2214/AJR.05.1813}}</ref> Preferably also in standing.<ref name="JamadarJacobson2006"/> Look primarily for an increased diameter of the inguinal canal, which is normally up to 13 mm at the deep inguinal ring.<ref name="KumarPatel 2018">{{cite journal|last1=Kumar|first1=Vipin|last2=Patel |first2=Jignesh |last3=Sharma |first3=Chakraprabha |last4=Inkhiya |first4=Suman |title=Morphometric Study of Inguinal Canal on Cadaver|journal=International Journal of Anatomy and Research|volume=6|issue=2.1|year=2018|pages=5172–5175|issn=23218967|doi=10.16965/ijar.2018.147}}</ref>