Hi there Elaiza and welcome to NeuroTalk.
I've never heard of a specific job that could lead to a Cerebro Spinal Fluid leak, but there are lots of causes for them to happen. It's even possible to have one occur spontaneously.
http://www.medscape.com/viewarticle/405624
You don't mention why you want to know and I was wondering if you think this might be happening with you.
Try typing CSF leak into your web browser, and see what you come up with.
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