Ask The Doctor > Questions & Answers > Penis Innervation

Penis Innervation

Patient: I have a ruptured L4 or L5 disk that is pinching the nerve bundle that runs down my left leg. My question is can that also affect nerves in my penis? I am finding it difficult to keep an erection during intercourse.

 

 

Doctor: The penis has a mixed innervation, part comes from S2-4 and part is sensory coming from the dorsal nerve of the penis, so is not likely that a nerve compression at the lumbar level L4-5 may cause what you described. Some other factors may be rule out as : alcohol, diabetes, smoking, amongst the most common.

 


 

 
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Dr. Suneel Sharman M.D.

Dr. Suneel Sharman M.D.

Dr. Suneel Sharman completed his residency in Family Medicine at the University of Toronto. He currently operates Infinity Health Centre, a walk-in-clinic in downtown Toronto.

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