How Long Does Hash Stay in Your System?

Marijuana Detection Time — How Long Is Marijuana In Your System?

How Long Does Hash Stay in Your System?

When marijuana is used, whether it be through patterns of abuse, medicinally or legally, the drug remains in a person’s system beyond the time a person feels its effects.

While there are guidelines for how long the drug remains in a person’s system, the exact time the drug is detectable for can vary. Depending on the type of test, the drug may be detectable the day a person uses the drug or up to three months.

In certain cases, a drug test may look for only one drug, however, in many cases a test screens for multiple substances. One of the most common tests, a urine test referred to as the “SAMHSA-5,” tests for amphetamines, cocaine metabolites, opiates and phencyclidine (PCP) in addition to marijuana.

The Different Types of Marijuana Drug Tests And Their Detection Times

There are various ways that marijuana (also referred to as cannabis, pot or weed) may be detected after a person’s most recent use, including by urine, hair, blood, saliva or sweat tests. Maternal marijuana use may also be tested in a newborn.

Each type of drug test has a different cannabinoid detection window. In most cases, a test doesn’t look for delta-9-tetrahydrocannabinol or THC, marijuana’s active cannabinoid. Instead, it looks for a metabolite, or compound that THC is broken into.

How Long Does Marijuana Stay In Your Urine?

The time it takes for a person to have a positive urine drug test result can vary from roughly three to 30 days, depending on their level of use and other factors. A urine drug test is also called a urine drug screen (UDS) or more crudely, in slang, as a “piss test.”

According to the Mayo Clinic, marijuana can be detected for up to:

  • 3 days after a single-use.
  • 5 days after moderate use (or using the drug four times per week)
  • ten days after daily, heavy use.
  • thirty days after chronic, heavy use.

There are two types of tests, an immunoassay or a gas chromatography/mass spectrometry (GC/MS), the former of which is cheaper and used more frequently. Sometimes both tests will be used, one after the other, in a two-step approach to confirm positive results or the presence of a false positive.

Urine tests are the most common way to test for marijuana use and abuse. This is large because they’re cheaper and more easy to administer than the other options, such as a hair test.

To take a urine test, a person must urinate into a cup and then seal it with a lid. While some places may test on-site for instant results, many send the specimen out so that an official report can be made.

How Long Does Marijuana Stay In Your Hair?

While more expensive, a hair test for marijuana (hair follicle drug test) can identify drug use up to 90 days. Metabolites of the drug may be found in the hair one week after a person uses the drug.

As a person’s hair grows, the drug metabolites become trapped in the core of the hair. A 1.5-inch hair sample can show drug use over the previous 3 months, due to the fact that most people’s hair grows a half-inch each month. A sample typically takes just over a hundred hairs from near the root and of the crown of a person’s head.

The long detection window of hair tests are helpful when working to identify chronic marijuana use, however, this method of testing isn’t the best for individuals who use on a sporadic basis. In order for a test to detect levels of a substance, a person’s drug use must be fairly heavy.

How Long Does Marijuana Stay In Your Blood?

Though not as common as a urine test, in certain cases a person may be asked or required to take a blood test to detect marijuana.

A blood test may point to marijuana use in a matter of minutes after a person uses the drug. However, some research shows that it may be detected for up to 25 days. Providers may prefer other tests due to the invasive nature of this type of testing.

Other Ways To Detect Marijuana

In addition to these tests, there are other tests that screen for marijuana use:

Marijuana Detection Time In Saliva Testing

The window for detecting marijuana in a person’s oral fluids or saliva is very brief. Saliva tests can only detect marijuana for up to 24 hours. Using breath sprays, mouthwash or another type of oral rinse that contains alcohol could potentially affect the results if used within 30 minutes prior to the sample being collected.

Marijuana Detection Time In Sweat Testing (Sweat Patches)

A sweat test can detect marijuana for one to two weeks. To test sweat, a patch is typically placed on the skin. Sweat patches detect if a substance or its metabolites are in a person’s bloodstream.

The FDA-approved patch remains on the skin for three to seven days before it is sent to a lab for testing. The patch tests for a substance both in the hours before the patch was applied and while it’s on a person’s skin. Skin swabs are available, however, there is doubt regarding their level of accuracy.

Roadside, DUI Or Breathalyzer Tests For Marijuana Intoxication

Research is currently underway to develop reliable roadside or DUI tests that detect recent marijuana use or intoxication. A marijuana breathalyzer that tests for THC is reported to detect this active compound in as little as two hours after a person last smoked pot. Studies are also examining saliva tests and how they could be used to detect edible marijuana consumption.

Marijuana Detection Time In Babies: Meconium Testing For Newborns

Pregnant women use marijuana more than any other illicit drug. In situations where the use or abuse is suspected, tests may be administered to test for marijuana exposure in a newborn.

This may occur if marijuana use or abuse is suspected by a doctor or other medical professional. One of the most frequently used tests to look for maternal marijuana use is meconium testing.

To administer this test, clinicians collect a meconium sample from the newborn. Meconium is the first stool of a baby. Meconium first starts forming while the child’s in the womb, developing at 12 to 16 weeks of pregnancy, or roughly the beginning of the second trimester. Due to this, meconium testing can detect marijuana use in the last four to five months of a women’s pregnancy.

If the meconium tests positive, child protective services (CPS) may be notified. Additional drug tests on newborns also include blood, hair, urine or umbilical cord blood or tissue samples.

Factors That Influence Marijuana Detection Times

The amount or dose a person smokes or otherwise uses can alter the time the drug remains in their system. This can change how long marijuana will show up in urine, blood, hair, etc. sample.

Marijuana is fat-soluble, meaning that it’s stored in a person’s fat. On account of this, a person’s body fat content or body mass index (BMI) could influence detection times.

In addition to these, other factors can affect marijuana detection times:

The Type of Marijuana Can Affect Marijuana Detection Times

The amount of THC, the component in marijuana responsible for the high, can vary widely between different strains of marijuana. Because of this, the variety of marijuana used could potentially change the window of detection.

Further, if a person uses a more concentrated form of cannabis, the amount of
THC and metabolites in their system could be higher. This can occur during dabbing or vaping, or when a person smokes or vaporizes various extracts hash oil, budder, shatter or wax.

How The Duration Or Frequency Of Use Can Alters Marijuana Detection Times

The longer a person uses the drug for and the more frequent the use, the longer the substance remains in a person’s system. For instance, after a single use, the drug exits a person’s system fairly quickly, while chronic use causes it to remain longer.

How A Person’s Metabolism Can Changes Marijuana Detection Times

Every person’s body is different, including their metabolism and the rate by which it will clear a drug from its system. Individuals whose metabolic functions are high will ly break cannabinoids down faster.

How to Test Sensitivity Can Impact Marijuana Detection Times

A drug test has a cutoff concentration (cutoff level), or the point at which testing begins to trace amounts of a drug or its metabolites. Anything above this is considered a positive and anything below a negative drug test.

The greater the sensitivity of the test for marijuana, the greater the detection window. Testing administrators may have the opportunity to select from different cannabinoid testing cutoffs.

How to Test Specificity Can Influence Marijuana Detection Times

When a greater number of cannabinoid metabolites can be detected, a test is considered to be less specific. The less specific the method of testing, and the wider the range of metabolites that could show up, the greater the detection window.

Does Changing The Way Marijuana Is Used Alter The Detection Time?

While any amount or type of heavy or chronic marijuana use increases the odds of detection, the way marijuana is used could affect how quickly it shows up, even in a person who has used the drug minimally.

When marijuana is smoked or vaporized it enters a person’s system quite rapidly. This can cause it to show up in a blood test nearly immediately. However, if a person takes marijuana orally, such as in an edible, the substance has to be digested before it enters a person’s system. This could delay how fast it shows up on a blood test.

Using Do-It-Yourself Marijuana Detoxes Or Flushes To Pass A Test

While some people will attempt to at-home marijuana detoxes or flushes to cleanse the drug their system, marijuana may still be present during testing.

Even more, if a person has a marijuana use disorder that is endangering their health, quality of life or family member’s well-being, a positive test result could help them get treatment and better stability.

When Are Marijuana Drug Tests Used?

Marijuana drug tests are administered for a variety of reasons. Testing may be voluntary or required. In certain cases, a person may be notified of their test or it may be part of random drug testing. Tests may be given in the following circumstances:

  • by a doctor, if marijuana use is suspected
  • by an employer, as either part of routine screening or because is suspect
  • as part of court-ordered sentencing requirements
  • at a drug or alcohol treatment center
  • to a person serving in the military
  • during pregnancy and/or when a child is born
  • at home, if a loved one wants to monitor a person’s use

Though marijuana tests do identify that a person has used the substance within the window of detection, they don’t necessarily show that a person currently uses or abuses the drug. Despite this, a positive test result could be a cause for concern and be used to help a person get help with marijuana addiction.

Getting Help For Marijuana Abuse And Addiction

Contrary to what many people may think, marijuana can be addictive and cause harm to a person’s body and mind. Nearly three ten people who use marijuana have a marijuana use disorder. A marijuana use disorder can cause cognitive problems, an increased risk of heart attack, impair brain development and lead to risky behaviors.

In certain cases, a person may be able to overcome an addiction to marijuana on their own, or in an outpatient treatment program. However, after experiencing the toll of addiction on their life and health, some people may prefer an inpatient drug rehab program. This can be especially true if a person’s abusing or addicted to another drug.

Marijuana treatment programs may use therapies or counseling to help a person build sober living skills so that they can live a more fulfilling, sober life.

Contact Vertava Health at 615-208-2941 for more information on marijuana abuse, addiction, and treatment.


Cannabis | FRANK

How Long Does Hash Stay in Your System?
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Cannabis is a plant-based drug. It can be smoked, eaten or vaped.

Also called:

Soft black resin, furry green leaves and hard brown lumps, cannabis can look very different depending on its type – but it all comes from cannabis plants.

You’re most ly to come across these types:


Also known as grass, weed is made from drying out the leaves and flowering parts of the cannabis plant. It can look dried herbs and is usually brownish-green in colour.


This is the name given for particular strains of grass that are very strong. Skunk’s become very popular in recent years and is often bright, pale or dark green in colour and covered in tiny crystals.


Not nearly as common as it used to be, hash (or hashish) is made from the resin of the cannabis plant and can be black, brown, soft or hard – depending on the type.

Cannabis oil

This is a dark, sticky and honey-coloured substance that’s much less common than other types.


These are highly concentrated forms of cannabis that are extracted using butane. They come in a solid form known as 'dab' or 'shatter' and can be used as e-liquids in vape pens.

Cannabis has a musky, sweet smell. Some of the more potent types of cannabis can have a stronger smell, but this isn’t a reliable guide to the strength of any particular batch.

In the UK, most people mix it with tobacco and roll it into a cannabis cigarette known as a spliff or joint. Some people don’t use tobacco at all and make weed-only spliffs — either because they prefer it that way or to avoid becoming dependent on nictotine.

Smoke bongs

Users do this mix by mixing the drug with tobacco and putting it in a pipe, lighting it, and then inhaling the smoke through water a large tube. There are many types of bongs, and not everyone uses tobacco. with joints, using tobacco in bongs increases the risk of nicotine dependence.

Eat and drink it (edibles)

People do this by mixing it into cakes (hash brownies), tea, yoghurt or sweets (gummies/lollipops). The amount of cannabis in these products can vary greatly and sometimes other harmful drugs are added too. The effects of consuming edibles are unpredictable and it can be very easy to accidentally take a larger dose than you wanted to.

Vape it

This method has become more popular in recent years. Most people use a vapouriser which heats the cannabis, rather than burning it. Very little is known about the health impact of vaping cannabis.

Smoking cannabis with tobacco increases the risk of becoming dependent on nicotine. To avoid this, don’t use tobacco in bongs and spliffs.

The effects of cannabis can vary massively. Some people say feeling 'stoned' makes them feel chilled out and happy in their own thoughts, while others say it makes them giggly and chatty. But it can also make people feel lethargic, unmotivated and some people become paranoid, confused and anxious.

The sort of experience you have depends on a lot of thinks ;

  • the kind of person you are (e.g. outgoing or shy)
  • the mood you're in, (if you're feeling down it will probably make you feel worse)
  • the environment you're in (you're more ly to feel paranoid or anxious if you don't feel comfortable where you are or if you're with people you don't trust)
  • how much THC it has (the main psychoactive compound in cannabis)
  • how much CBD it has (which is thought to make users less ly to feel anxious and paranoid)
  • how much you take
  • how often you take it

Cannabis changes how you think and some people say it gives them a different perspective on things. It does affect your judgement though and people often think conversations or thoughts they have (whether good or bad) are much more deep or important when they’re stoned than they would do normally.

It can also make you hungry, known as having ‘the munchies’, or make you feel sick, known as ‘a whitey’. It can make you feel drowsy or sleepy and can give you the sense that time is slowing down.


The hallucinogenic effects of cannabis are mainly due to a compound in cannabis called THC (tetrahydrocannabinol).

The other important compound in cannabis is CBD (cannabidiol). Skunk and other forms of strong cannabis contain high levels of THC but very little, or no, CBD.

It's thought that CBD can balance out some of the effects of THC and make users less ly to feel anxious and paranoid. You can’t tell from looking or smelling cannabis whether there's a balance of CBD and THC in it, but in general, hash may have more CBD than skunk.

Cannabis can make some people giggly and chatty, and other people paranoid, confused and anxious – it really depends on the type of person taking it and the circumstances they take it under.

Some people:

  • Experience mild hallucinations if they take particularly strong cannabis.

  • Become lethargic and unmotivated.

  • Have problems concentrating and learning new information. This is because studies suggest that cannabis effects the part of the brain we use for learning and remembering things.

  • Perform badly in exams. Because cannabis impacts the part of the brain we use for learning and remembering things, regular use by young people (whose brains are still developing) has been linked to poor exam results.

How long the effects last and the drug stays in your system depends on how much you’ve taken, your size and what other drugs you may have also taken.

When smoked, it normally takes a minute or two to feel stoned. If you eat cannabis, it can up to an hour.

How long it lasts:

This depends on how much you smoke. Generally, the effect is strongest for about 10 minutes to half an hour after smoking cannabis, but if you smoke a lot, you may still feel stoned for a couple of hours. If you eat cannabis, the peak effects can last for 2 to 4 hours, and there may even be a few more hours before the effects wear off completely.

After effects:

People may still feel the effects the next day, particularly after a heavy session.

If you’ve used cannabis as a one-off, it will show up in a urine test for around 2 to 3 days afterwards.

However, this can go up to a month for regular users.

How long a drug can be detected for depends on how much is taken and which testing kit is used. This is only a general guide.

Smoking cannabis can;

  • make you wheeze and breath
  • make you cough uncomfortably or painfully
  • make your asthma worse if you have it

There's been less research on it but smoking cannabis is ly to have many of the long term physical health risk as smoking tobacco (even if you don't mix the cannabis with tobacco). So smoking cannabis can also;

  • increase the risk of lung cancer
  • increase your heart rate and affect your blood pressure, which makes it particularly harmful for people with heart disease
  • reduce your sperm count if you're male, affecting your ability to have children
  • suppress your ovulation if you’re female, affecting your ability to have children
  • increase the risk of your baby being born smaller than expected if you smoke it while pregnant

Using cannabis can:

  • affect your motivation to do things
  • impair your memory so you can’t remember things or learn new information
  • give you mood swings
  • disturb your sleep and make you depressed
  • make you anxious, panicky, or even aggressive
  • make you see or hear things that aren’t there (known as hallucinating or tripping)
  • cause hours (or days) of anxiety, paranoia and hallucinations, which only settle down if the person stops taking it – and sometimes don’t settle down at all
  • cause a serious relapse for people with psychotic illnesses schizophrenia
  • increase your chances of developing illnesses schizophrenia, especially if you have a family background of mental illness and you start smoking in your teenage years

Lots of things.Dealers cut hash with similar-looking substances or heavy materials to increase the weight of the drug and make a bigger profit.

Although not all cannabis is cut, it’s very hard to know when it is or isn’t – so you could be smoking, eating or vaping chemicals from all sorts of unknown substances, including pesticides used when growing the cannabis.

Tobacco is often mixed with cannabis, for making joints or smoking bongs. If you mix cannabis with tobacco you’ll be taking on the same risks you get from smoking tobacco.

These are: addiction to nicotine (the drug in tobacco), coughs, chest infections and in the longer-term, cancer and heart disease.

Yes, any time you mix drugs together you take on new risks.

For example, if you drive when stoned or high you double your chances of having a fatal or serious injury car crash, but if you drive after mixing cannabis with alcohol, you’re 16 times more ly to crash.

Smoking or vaping cannabis with tobacco increases the risk of becoming addicted to nicotine which is the addictive drug in tobacco.

Yes. Heavy cannabis users often get cravings and find it hard not to take the drug – even when they know it’s causing them physical, mental or social problems.

When heavy users do try to stop they can:

  • feel moody and irritable
  • feel sick
  • find it hard to sleep
  • find it hard to eat
  • experience sweating and shaking
  • get diarrhoea

If you roll your spliffs with tobacco, you’re also at risk of getting addicted (or staying addicted) to nicotine.

Class: B

  • This is a Class B drug, which means it’s illegal to have for yourself, give away or sell.

  • Possession can get you up to 5 years in prison, an unlimited fine or both.

  • Supplying someone else, even your friends, can get you up to 14 years in prison, an unlimited fine or both.

drink-driving, driving when high is dangerous and illegal. If you’re caught driving under the influence, you may receive a heavy fine, driving ban, or prison sentence.

If the police catch people supplying illegal drugs in a home, club, bar or hostel, they can potentially prosecute the landlord, club owner or any other person concerned in the management of the premises.

Additional law details

Cannabis is different to other Class B drugs as it comes under the discretionary warning scheme.

This means that a police officer can choose to issue you with a street warning only (which doesn’t form a criminal record, though it will be recorded), so long as:

  • you're in possession of a small amount of cannabis only, and for your personal use
  • it’s the first time you’ve been caught with an illicit drug and you have no previous record of offence
  • you are compliant, non-aggressive and admit that the cannabis is for your own use only

If you're caught with cannabis and it's your second offence, the police can issue with a fixed-term fee notice, which is an on-the-spot fine for £80.

As long as you pay that within 21 days, there's no criminal record. If there’s a third occasion, you will be arrested and taken to the police station.


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