A site for medical students - Practical,Theory,Osce Notes

How to elicit the Cremasteric Reflex?

Pre requisites for eliciting cremasteric reflex are the following.
First expose the testes
Apply stimulus from above downwards

Root value of cremasteric reflex

There is  elevation the testes on stimulation.

What are the fallacies in testing cremasteric reflex?
This reflex should be differentiated from a scrotal reflex which is produced  due to the contrac
tion of the dartos muscle.

What are the causes of absent Cremasteric reflex?
In pyramidal tract lesion
This may not be absent in all cases
Due to the break in the reflex arc
  • Motor root
  • Sensor y root
  • Peripheral nerve
It may be absent in elderly patients
Presence of hydrocele
Following scrotal operations