This question has also been asked and answered here: How long does Marijuana stay in your system?
14 Aug 2011
As a rough guide: if you smoke the occasionally joint, it'll stay in your system for up to 10 days. If you smoke regularly, up to 45 days and if you smoke constantly, 90 days.
As for being detectable in a drug test, well this depends on the type of drug test. Urine test will detect up to a month after but a hair test will show positive if you've smoked any weed in the last 3 months.
Also important to note that marijuana residue is stored in the fat cells, so if you're skinny or have a high metabolism, the time it takes to leave your system may be reduced.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
How long do you need to wait before you are clear to take a drug test?
9 answers • 30 Jul 2009
I have been a heavy user of marijuana (for pain) for many years.I have been marijuana free for 38 days now. I bought a drug test from Walmart and ...
4 answers • 11 Mar 2011
2 answers • 24 Jun 2011
1 answer • 19 Sep 2011