Marijuana, also known as weed, is a widely used recreational drug that can affect a person’s mind and body. The length of time that weed stays in a person’s system depends on several factors, including the frequency and amount of use, as well as a person’s age, weight, metabolism, and hydration levels.
The active ingredient in weed, delta-9-tetrahydrocannabinol (THC), is the substance that is most often tested for in drug tests. THC can remain in a person’s system for several days to several weeks, depending on the frequency and amount of use.
Urine testing is the most common method used to detect THC in a person’s system. For occasional users, weed can usually be detected in the urine for 1-3 days after use. For frequent or heavy users, weed can be detected in the urine for up to 30 days or longer.
Saliva testing is another method that can detect THC in a person’s system. This method is less commonly used, but it can detect THC for up to 72 hours after use.
Blood testing is the most accurate method for detecting THC in a person’s system, but it is also the least commonly used due to the invasive nature of the test. THC can be detected in the blood for up to 24 hours after use.
Hair testing is another method that can detect THC in a person’s system. This method is not as common as urine testing, but it is the most accurate method for detecting long-term use of weed. THC can be detected in the hair for up to 90 days after use.
The length of time that weed stays in a person’s system varies depending on several factors. If you are concerned about being tested for weed use, it is important to be aware of the testing method and to understand the time frame in which it can be detected.

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