Referred pain from ureteric colic is felt in the groin due to

Referred pain from ureteric colic is felt in the groin due to involvement of the following nerve:

1.Subcostal.
2.Iliohypogastric.
3.Ilioinguinal.
4.Genitofemoral

Ans.4                        [ GRAY ANATOMY - Referred pain due to ureteric colic - It shoots down and forwards from the loin to the groin and scrotum or labium majus and may extend into the proximal anterior aspect of the thigh by projection to the genitofemoral nerve (L1, 2); the cremaster (which has the same innervation) may reflexly retract the testis] By this the answer should be 4 We should go for answer 4 but S das textbook of surgery suggests otherwise read below....more discussion at "Question Forum"]

[ Das textbook surgery page 1136 1st ed says that upper ureteric colic referred to loin and groin is carried by Iliohypogastric and Ilioinguinal nerve. Since skin is supplied by Iliohypogastric then is should be the answer. When ureteric colic pain is referred to testicles / thigh then Genitofemoral nerve is involved]