Guyon's canal syndrome

What is Guyon's canal syndrome?

Ulnar tunnel syndrome, also known as Guyon's canal syndrome or Handlebar palsy, is caused by entrapment of the ulnar nerve in the Guyon canal as it passes through the wrist. Symptoms usually begin with a feeling of pins and needles in the ring and little fingers before progressing to a loss of sensation and/or impaired motor function of the intrinsic muscles of the hand which are innervated by the ulnar nerve. Ulnar tunnel syndrome is commonly seen in regular cyclists due to prolonged pressure of the Guyon's canal against bicycle handlebars.

Questions and answers on "Guyon's canal syndrome"

it is painful to touch the skin on the lower part of my thumb and wrist - possibly on the blue vein extending down from the base of the thumb,...

doctor1 MD


Thanks for the query

The pain distributing through the thumb and wrist is the area of the ulnar nerve which possible have got pressure...

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I currently have a strange tingling sensation in my right hand. Mostly my pinky and ring finger. It feels as if it has "fallen asleep". However,...

doctor1 MD

Thanks for posting your query.
The symptoms which you’ve described indicate involvement of the ulnar nerve which is usually involved around...

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