@heisenberg34 I've done a lot of research on PN, and have not found a correlation between statins and PN. I was diagnosed with PN in 2011 and began taking rosuvastatin in 2019. My oncologist recently took me off the statin, as she said it could adversely affect the success of the selpercatinib I take for thyroid cancer. No one has been able to establish a cause for my PN through diagnostic testing, so at this point, it is considered idiopathic.