How long does cannabis stay in the blood?
How long cannabis can be detected in your blood really depends. It varies based on how often you use it, the amount you took, and your own metabolism.
If you only use it occasionally, THC is usually only detectable in your blood for a few days. But if you use it regularly or in high amounts, it can stick around for several weeks. The breakdown products especially get stored in body fat and take a while to leave your system.
