What is the maximum length of time marijuana stays in your system?

Answer by  Brig (28)

Marijuana does not stay in your system. The main chemical in marijuana, THC, stays inside the human body. THC is stored in fatty tissues of organs and can remain in forever. Depending on the type of test given to detect marijuana, combined with the frequency of use, THC and THC by-products can be detected for up to 3 months.

Answer by  Henry18 (13)

The main cannabinoid in Marijuana, THC, can stay in your system, theoretically, forever. It is fat soluble, and as long as you're not burning fat, it will stay there.