How Long Marijuana Stay in Your System?

How long marijuana stays in your system? The effect of a weed fades rapidly, but the drug could be traced in our body for weeks or longer. The number of times the active compounds and breakdown materials of marijuana stays in our system could reach from several hours up to 90 days, varying on how many times or how much of a weed the person has been using. In this article, we will discuss how long marijuana stays in your system for a urine test, how long THC stays in body, and how long weed stays in your blood.

How cannabis travels through the body?

To fully know how long marijuana can stay in one’s system, it is important to understand how THC moves and communicates with your body. When marijuana is vaporized or smoked, THC travels through the bloodstream of the lungs. And then, THC is transmitted in the bloodstream straight to the heart and pumped all across the body, enforceable to the CB1 receptors located in the brain, specific organs, and the central nervous system, as well as to the CB2 receptors in the immune system and spleen. As blood travels all throughout the body, THC is continually passed it through the liver and broken into metabolites. The majority of drug screening techniques used to sense the amount of marijuana in the body are one metabolite called THC-COOH or 11-nor-9-carboxy-THC. 

This unresponsive metabolite of THC, which also is collected in the fat and slowly reduced via feces and urine, stays in the body for longer, unlike active THC. This is why so many cannabis diet drinks and kits assert to remove or disguise the existence of THC enzymes. The procedure is completely different when weeds join the system which consists of a capsule or an edible. If marijuana is consumed, THC travels through the bloodstream via the lining of the stomach and intestine and then travels back to the liver in which a significant amount is removed or absorbed by the body. The residual THC metabolites and THC are then distributed through the heart and then sent to the brain.

How Long It Take to Feel the Effects?

The effects of cannabis may differ from person to person. Some people would feel relaxed and euphoric, while others would feel paranoid and anxious. In several other cases, people report feeling “demented” and experience a loss of interest in things or a refusal to comprehend ideas. The chemical in weed that leaves you feeling “high” is delta-9-THC also known as tetrahydrocannabinol, or plainly THC. It travels through the bloodstream of the body quickly after smoking cannabis. 

If cannabis is ingested orally instead of smoked, it will take much longer to be digested into the blood, normally from 20 minutes and an hour and a half, but this may vary depending on the amount consumed, and also physiological responses like absorption and the level of excretion and metabolism that may impact drug concentrations in the circulatory system. Effects may vary widely depending on the strain, the technique of intake, and quantity, and may include the following: 

  • Swollen eyelids
  • Dry mouth
  • Bloodshot eyes
  • Increased appetite
  • Pleasurable body sensations
  • Relaxation
  • Distorted perception
  • Stimulation
  • Loss of coordination
  • Increased heart rate
  • The trouble with memory, thinking, and problem-solving

The short-term effects of cannabis on learning, memory, problem-solving, and cooperation last for 1-2 hours, with some lasting effects for 24 hours. And has been shown to affect your driving performance for up to 3 hours, as per the (NHSA) National Highway Safety Administration. The effects of cannabis are also affected by the terpene profiles of the cannabis strain. For example, citrus terpene profiles appear to become more stimulating, that may have the desired impact, and may make a contribution to anyone feeling anxious. This variability can make a contribution to how rapidly you perceive the effects of what those effects are. THC may interact with blood thinners, anti-anxiety drugs, and alcohol, so it is important to address your use of marijuana with your doctor.


How long weed stays in your system?

There is no global rule for how long marijuana stays in the system as it relies on far too many factors. THC as well as its active ingredients may be detected in urine, blood, hair, and saliva. However, current research enables everyone to develop a better understanding as well as make a very well-educated approximation.

How long weed stays in your blood?

How long weed stays in your blood? Upon ingestion, active THC could be detected in the blood system in just a couple of seconds and it can be detected in the plasma for a few hours based on the amount of dosage and use. Based on the 2004 analysis, the plasma concentration of THC reaches a maximum of only 3 to 8 minutes upon inhalation and then rapidly decreased with such a half-life of approximately 30 minutes. The study reports that THC is present in the blood for around 5 hours, however, the THC-COOH enzyme has a time consumption of roughly of about 25 days. In the 2009 research, researchers tracked the blood concentrations of cannabinoids in 25 repeated marijuana smokers. Throughout 7 days of marijuana withdrawal, 9 subjects, or 36%, seemed to have no quantifiable THC in everyone’s system, whereas the other 16 had very at least one potential THC test during the same time period. After the week-long period, 6 of the participants still had measurable THC concentration levels and then all subjects had quantifiable THC-COOH rates. 

Thus, whereas the active component of THC does not stay in your bloodstream for a longer period of time, THC metabolites could still be found in your body for several weeks after using it.

How long weed stays in your urine?

How long weed stays in your urine? Identified as its preferred way of testing cannabis drugs, urine testing is sometimes used as a baseline for detecting marijuana use. Most urine drug tests use particular responsiveness to the THC-COOH cut off point concentration. A most popular cut off point concentration is 50 nanograms per milliliter, as recommended by the (SAMSHA) Administration of Substance Abuse and Mental Health Services.

Based on the May 2017 study released in Mayo Clinic Proceedings, marijuana could be detected in the system for up to 3 months in occasional weed users, 5 to 7 days in mild users, 10 to 15 days in regular weed users, and also over 30 days in chronic users who intake numerous times per day.

Major factors which influence how long the weed remains in your system

There are a number of factors that may have an effect on the amount of period that THC stays in your system.

Metabolism and Genetics

A human’s body with higher metabolic features could also destroy cannabinoids at a rapid rate, reducing the period of time that THC as well as its active ingredients stay measurable in the body. Genetics also affects the significant period of time that THC stays in our system. For example, people possess different versions of the cytochrome P450 superfamily of enzymatic that change THC in the body, resulting in its reduction through the urine.

Dosage and Frequency of use

The greater the amount of THC which is absorbed, the longer it will take the body to tear back and concentrate through THC as well as its correlating metabolism. The total intensity and duration of use by the user have a significant impact on the amount of time that marijuana would also remain in your system. Most cannabinoid tracking studies show that THC remains in the chronic user system for far way too long for one time and even infrequent users. The frequency of marijuana usages is indeed a significant risk factor in the development of symptoms of marijuana withdrawal.


Genetics also affects the length of time in which THC stays in the system. For example, people acquire various types of the cytochrome P450 superfamily of enzymatic that modify THC in the body, resulting in its abolishment via urine.


The amount of body fat also is an important factor. The metabolite THC-COOH is fat-soluble and connects to fat cells where it could be collected for a lengthy amount of time. Workout may also affect the levels of measurable THC metabolites in the very same vein. If fat is burned, inactive THC from fat could be absorbed into the circulation and excreted in the urine or droppings from the body.

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