 [ Symptoms ] will marijuana in system stop surgery i have not smoked marijuana in about two months but it is still in my system i am scheduled for spinal surgery in ten days i did a urine sample as part of pre op and wonder if it would stop my surgery if found in my system [ Disease ] i have recurring poison oak on my hands every few months use mean green hand cleaner it will not prevent recurrences but it will give you instant all day relief and it is cheap compared to drug store remedies i do not work for them this stuff has saved me multiple times google it if you do not believe me