Traces of marijuana stay in the body for several days after use. If a person has been using marijuana heavily, it can take weeks for the traces to be eliminated from the body.

Marijuana detection times

Blood/Saliva: In blood or saliva, marijuana can be detected for a few hours.

Urine: In urine, marijuana can be detected from 13 to 90 days depending on the amount of usage.

Hair: In hair, marijuana can be detected up to 90 days after usage.


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