How Long Does Marijuana Stay In Your System

How Long Does Marijuana Stay In Your System

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There is no doubt about the fact that smoking a fat joint or eating a big edible is very fun, relaxing, and it comes with a host of medical benefits too, both physical and mental.

However, the unfortunate reality is that even though many countries are beginning to legalize this awesomely beneficial herb, it does still have a bit of a stigma, especially when it comes to finding employment.

You might be scared of that blood or urine drug test. So, how long does marijuana stay in your system? If you are new to smoking or eating the ganja, and if you have regular drug tests at work, you probably want to know how long this stuff stays in your system for.

Well, it does depend on the strain of weed, the potency and amount of THC in your weed, and on your own body, how much body fat you have, and your metabolism too. Weed might only stay in your system for a few days, or it can be up to one month. Let’s talk about this in greater detail right now.

What Do Drug Tests Look For?

First off, you might be wondering what exactly drug tests look for in marijuana users. Well, the main active ingredient in pot is THC, so this is what the drug tests look for.

Also, the liver metabolizes THC and turns it into a THC metabolite known as THC-COOH, which is also tested for, usually through urine tests. The bottom line is that all drug tests look for the THC in your system, in one form or another.

How Long Does Weed Stay In Blood?

Something to keep in mind here is that blood tests for weed are pretty rare, so this is not something that you should worry about too much, but it does still happen.

The good thing about THC and its metabolites is that it likes to be stored in fatty areas of the body. Obviously blood is not very fatty, so THC does not stay in your blood for very long.

If you are an occasional user and just smoked a single joint, you can expect the THC to leave your system in about 24 hours, and usually even less. If you smoke on a semi-regular basis, such as 2 to 3 times per week, you can expect the THC to stay in your blood for about 3 days.

If you are a daily marijuana consumer, you can expect the THC to stay in your blood for up to 1 week. Therefore, if you are a daily smoker of pot, and need to get a drug test done for whatever reason, waiting for 7, 8, or even 9 days is highly recommended. The more you smoke, the longer the marijuana will stay in your system for.

How Long Does Weed Stay In Your Hair?

Another way which a drug test can be done to look for marijuana in your system is to do a hair follicle test, so depending on where your are employed, or want to be employed, this could be an issue for you.

Generally speaking, weed does stay in the hair for quite some time, longer than in most other places. What needs to be said here is that although THC does stay present in the hair for a long time, it does take a lot of regular use to get it in your hair in the first place.

Hair follicle THC tests are actually designed to look for regular pot smokers rather than the occasional user. There needs to be a high and regular supply of THC for it to really permeate the hair, but once it does get in the hair, it will stay there for quite some time.

If you smoke a big joint at once, even this may stay present and detectable in your hair for 7 days or more. Regular users of weed, or in other words, people who smoke a gram or more on a daily basis, may find that the THC can be detected in your hair follicles for up to 90 days. However, hair tests for THC are fairly rare.

How Long Does Marijuana Stay In Your Saliva?

Many modern drug tests use saliva swabs, or in other words, they use something like a Q-tip to gather saliva from your mouth in order to test for THC.

However, this is really only effective for regular users or for people who just smoked some pot in the last 24 hours. THC will only stay in your saliva for up to 24 hours.

This is why police officers and traffic enforcement officers use THC saliva swabs to test for impaired driving, because they are effective at registering THC over a short period of time.

This is if you are an occasional smoker or just happened to drink one too many beers last night and decided it was a good idea to smoke up. If you are a regular marijuana consumer, such as at least once every two days, the THC can stay in your saliva for up to 3 days.

So, if you are being forced to do a drug test based on saliva, be sure to not smoke or ingest any pot for at least 3 days, if not 4 days, before you have to get your saliva tested.

However, if you are super heavy smoker, such as several grams per day, it is recommended that you wait for at least 7 days before a saliva test for THC.

How Long Does Pot Stay In Your Urine?

cannabis urine test

One of the most important facts here is that at the end of the day, how long marijuana stays in your system for has to do with how long it stays in your urine for.

This is why the urine test is a big deal, and t is why many people try to detox and flush out their systems to try and get rid of any THC in the body. Urine testing is one of the most effective ways to test for THC in the system, as it tends to have the longest detection period, plus it tends to be the cheapest method as well.

It is indeed probably the best way for employers and government agencies to test for marijuana use. Keep in mind that these urine tests do not test for THC specifically.

They test for something called THC-COOH, which is a metabolite that is created when the liver breaks THC down, and it can stay in your system for quite some time. Now, how long the pot stays in your system for, or in your urine, will depend on a number of factors, but mostly how regularly you consume marijuana.

To give you an idea, let’s talk about how long marijuana stays in the urine for, for a variety of smokers based on regularity of consumption.

  • If you smoke once, it can stay in the urine for up to 8 days
  • If you smoke over 4 times in a 30 day period, it can stay in the urine for up to 15 days
  • If you smoke over 10 times in a 30 day period, it can stay in your urine for up to 30 days
  • If you smoke more than 20 times in a 30 day period, it can stay in your urine for up to 77 days
  • If you are a hardcore stoner that smokes daily, you can count on the THC staying in your system for up to 3 months, which is not good news for any stoner that is looking for a job that entails urine testing for marijuana.

Passing A Urine Test

Many people search online for how to pass a urine test after smoking marijuana, a big question mostly asked by regular consumers.

Well, what you need to know here is that no method is 100% effective at masking or flushing your system of THC. Yes, some methods do work, but if you are a regular smoker and are getting a urine test the next day, you are probably out of luck.

However, one way to try and flush your system of THC is by using a variety of detox pills. There are detox pills that can be bought online which are known to help flush THC out of the urine and the body in general.

Another way to help mask the THC in your system and to dilute your urine is simply to consumer a heck of a lot of water the day before and the day of a drug test, but when you do this, you do run the risk of voiding your urine test. Don’t think that the people administering these tests aren’t familiar with these little tricks!

Another method of masking the THC in your urine is to go with the fruit pectin method. Fruit pectin is a type of starch produced by fruits, often found in jams, preserves, and other such foods.

You can mix fruit pectin with an electrolyte drink such as Gatorade, which needs to be consumed at least 2 hours before the urine test, and if you can, even for a couple days in advance.

Drinking some B vitamins and lots of water after consuming the pectin mix will help too. This can go a long way in eliminating THC from your system, but it is still not effective 100% of the time.

How Long Does Weed Affect Your Body?

Now, if we are just talking about the physical and mental effects of weed on your body, this is much different than actually detecting a THC content in your blood, urine, or saliva.

Generally speaking, it does depend on the type and potency of weed, but smoking a joint should not affect your body for longer than a few hours. You have probably smoked a joint before. How long do you feel high for?

Sure, you can include the so called burnout, which adds a few hours to the equation, but that is about it. However, edibles are a bit of a different story.

Edibles cause the THC to be metabolized by the liver, and this causes chemical changes, and therefore, when you eat edibles, it can affect your body for up to 12 hours or more. Edible highs last a lot longer than the high from smoking weed.

How Long Does Weed Butter Stay In Your System?

In terms of how long weed butter stays in your system for, it is really no different than smoking weed or eating other edibles.

Refer to the above sections to find out how long THC stays in your system for in order to answer this question. As long as you consume THC in some way or another, whether it is edibles, smoking, or vaping really doesn’t make too much of a difference.

Now, with that being said, as mentioned above, edibles are usually much more potent, and therefore, due to the pure potency of the THC, you might expect it to stay in your system for a few days longer than if you just smoked a little joint.

Weed & Your System – Some Things To Keep In Mind

There are a few things that you should keep in mind here. Here we are talking about the various factors which will decide how long the THC stays in your system for.

Fat Content

THC loves to store itself in fatty places in your body. The more body fat you have, the longer the THC will stay in your system for.

In other words, a slim and toned athlete will expel the THC much faster than an overweight couch potato.

Drug Strength

Since drug tests look for THC, the more THC you ingest and the higher the THC level of the weed you smoke or eat, the longer it will stay in your system for. It’s simple math really.


The faster and better your metabolism or metabolic rate is, the faster your body will burn through the THC in your system.

In other words, somebody who is relatively skinny, works out, and has a fast metabolism will expel the THC much faster than somebody who is considered to be overweight and inactive.

Why Do Drug Tests Matter If Weed Is Legal?

legal cannabis

The important thing to note here is that even if pot is legal where you live, government agencies and various private businesses still have the right to perform drug tests for THC, and to keep you from getting a job due to this.

Remember folks, workplaces may not be able to refuse you employment due to sex, gender, race, religion, creed, or sexual orientation, but they definitely can bar your from work due to drugs such as marijuana.


There you have it folks, everything you need to know about cannabis, THC, and how long it stays in your system for. If you are aiming for a good job that happens to test for THC, be sure to leave yourself enough time so that your body can detox and expel the THC, or else you might land in some hot water.