How long does it take for marijuana to leave your system.

Weed, also known as marijuana or cannabis, is usually detectable in bodily fluids for 1 to 30 daysTrusted Source after last use. As with other drugs, it may be detectable in hair for several months.

Weed detection windows depend on how much you smoke or ingest, as well as how often. In general, higher doses and more frequent use are associated with longer detection times.

For daily users, cannabis may be detectable for several months after last use. The longest-reported detection times are more than 90 days.

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