How Long Does Marijuana Last In Your System?

How Long Does Marijuana Last In Your System?

Cannabis sativa is the plant from which marijuana, sometimes referred to as weed, cannabis, or pot, is derived. Tetrahydrocannabinol (THC), a substance found in the plant, causes a “high” when smoked, ingested, or vaped.

According to figures from the UK, about 30% of adults between the ages of 16 and 59 have ever used marijuana. THC can produce sensations of tranquility, peace, and relaxation, which may cause users to desire to use it repeatedly. However, if you use this chemical frequently, you risk becoming addicted to it and becoming hazardous.

Depending on a variety of variables, such as:

The procedure for detecting cannabis in your system

Your method of cannabis consumption (e.g. smoking or ingesting the substance when it has been baked or cooked in food)

How much marijuana have you been consuming?

A Number of Aspects Linked to Your Particular Physique

Learn more about how long marijuana can be found in your urine, blood, saliva, and hair by reading on.

How long can cannabis still be detected in drug tests?

How Long Does Marijuana Last In Your System?

A drug test will reveal whether you have any cannabis in your system. The sampling technique can affect how long it takes to find traces of the medication you last used.


Cannabis can often be detectable in your blood for 1-2 days following use, according to information provided by Drug and Alcohol Information and Support Ireland.

This might drastically rise depending on the usage level. According to research by Therapeutic Substance Monitoring, the drug may remain detectable in your blood for up to 25 days after your last use in some chronic users.


Cannabis can be found in your urine anywhere from a few days and many weeks after your last use, according to the Mayo Clinic Proceedings’ Clinical Interpretation of Urine Drug Tests. This is dependent on the user’s amount of usage. The recommendations generally state that:

  • Up to 3 days following your most recent usage, single-use can be identified.
  • 5-7 days following your last use, moderate use (four times per week) can be identified.
  • 10-15 days after your last use, chronic use (daily use) can be identified.
  • It may take up to 30 days after your last usage to discover chronic heavy use (using more than once per day).

The most typical test used to find marijuana, according to MedlinePlus, is a urine test.


The method of choice for drug testing drivers on the side of the road is frequently saliva. Within 24 to 72 hours of your most recent use, saliva testing can detect cannabis use in your system.


Hair testing is another way to detect marijuana in your system since THC travels from your bloodstream to your hair follicles. Up to 90 days after your last usage, the medication may still be found in your hair.

Compared to other cannabis drug testing methods, hair tests are typically less accurate. A false positive could occur if marijuana has made its way onto your hair strands due to secondhand marijuana smoking or physical contact with someone who has touched marijuana.

What Are the Different Factors Affecting How Long Marijuana Stays in Your System?

How Long Does Marijuana Last In Your System?

The length of time that marijuana remains in a person’s system is dependent on a variety of variables. Some of these are associated with you personally, while others are associated with the volume of your use. Many of these have nothing to do with the test itself, but rather your capacity to metabolize the substance.

The following variables may have an impact on how long marijuana remains in your system:

A Measure of Body Mass (BMI)

THC is retained for longer in people who have higher body fat. Less THC can be “stored” in the bodies of those with lower BMIs.


Because females often have higher quantities of body fat than males, cannabis is more likely to metabolize slowly in their bodies and be detectable for extended periods of time.

Genetics: Some people naturally have quicker metabolisms, which shortens the amount of time that marijuana is detected in your system. On the other hand, some people have slower metabolic rates, which makes it possible to detect marijuana in their bodies for a longer period of time.

Usage frequency:

Commonly, infrequent users can ‘clean’ THC from their bodies more quickly than long-term users.

Potency and manner of ingestion: Weed with strong THC levels may stay in your system for longer. It is also believed that eating marijuana stays in your system longer than marijuana smoking.

Cannabis metabolism

Nothing dependable would cause the cannabis in your system to metabolize more quickly. There are certain marijuana detox products on the market that promise to assist you with diluted (and disguise the diluted) substances in your system. These kits are known to be unreliable, though.

The Effects Last for How Long?

How Long Does Marijuana Last In Your System?

Cannabis’ effects can be felt as soon as 1-2 minutes after smoking it, according to TalktoFrank. To feel the effects of cannabis consumption, it can take up to 45 minutes.

Typically, the ‘high’ you experience from marijuana lasts for at least an hour.


Kimberly is a freelance writer with a love of writing and traveling. She has been writing for most of her life and has been published in various magazines and online publications. She writes about entertainment, technology, and lifestyle-related topics at Kimberly is always looking for new writing opportunities and loves learning about new cultures and experiences.

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