Marijuana is a commonly used substance, and understanding how long it stays in your system can be important for a variety of reasons. The length of time that marijuana remains in your system depends on several factors, including the amount used, frequency of use, and your individual metabolism.
THC, the main psychoactive compound in marijuana, is stored in the body's fat cells. It is slowly released from these cells over time and can be detected in the body for several days or even weeks after use. The exact length of time that THC remains in your system will depend on several factors, including your body fat percentage, metabolism, and the amount of THC consumed.
In general, marijuana can be detected in urine for 2-7 days after use, although heavy, long-term users may test positive for up to 30 days after their last use. In blood, marijuana can be detected for up to 24-48 hours after use, while in saliva, it can be detected for up to 72 hours.
It's worth noting that marijuana can also remain in the hair for up to 90 days after use. Hair testing is not commonly used for marijuana testing, but it can provide evidence of long-term drug use and can be used to detect the use of other drugs as well.
In conclusion, the length of time that marijuana stays in your system will depend on several factors, including the amount used, frequency of use, and your individual metabolism. While marijuana can be detected in urine for 2-7 days after use, it can remain in the body for several weeks or even months in heavy, long-term users. If you are concerned about testing positive for marijuana, it is best to speak with a healthcare professional or a specialist in drug testing for more information.