We don’t currently have direct access to the latest tool results in this turn, so the answer will be based on general, commonly cited information up to now. Direct answer
- For a one-time or infrequent use: THC may be detectable in urine for up to about 3 days.
- For moderate to heavy use: detection windows extend, with typical ranges roughly:
- Moderate use (a few times per week): about 5–7 days
- Daily use: about 10–15 days
- Heavy, long-term use: possibly 30 days or more
- Other tests have longer or shorter windows:
- Hair tests can detect THC for up to about 90 days
- Blood tests are usually positive only within hours to a day or so after use
- Saliva tests generally detect recent use, often within 24 hours
Notes and caveats
- Detection times depend on many factors: amount of THC consumed, mode of use (smoked/vaped vs. edibles), metabolism, body fat, hydration, physical activity, and the sensitivity of the test.
- Very heavy or chronic users may retain detectable levels longer, especially in urine, because THC metabolites are stored in fat and released over time.
- Urine tests commonly screen for THC-COOH, a metabolite, not THC itself.
If you have a specific scenario (e.g., frequency of use, body weight, test type, and test date), I can tailor the estimate more precisely.
