Weed (marijuana) can stay in the system for varying durations depending on factors such as usage frequency, metabolism, body composition, and type of drug test. Generally:
- For occasional or one-time use, THC metabolites may be detectable in urine for up to 3 days.
- Moderate use may be detectable for about 5 to 7 days.
- Daily use could be detected for 10 to 15 days.
- Heavy or chronic use might leave traces for 30 days or more.
- In blood, THC is typically detectable for up to 12 hours but can last longer in heavy users.
- In saliva, THC can be found for up to 24-48 hours.
- Hair tests can detect THC metabolites for up to 90 days.
THC and its metabolites are fat-soluble, meaning they are stored in fat cells and gradually released, which prolongs detection times in the system. The method of consumption and individual factors like metabolism, hydration, body mass index, overall health, and genetics also influence how long weed remains detectable in the system.
