How Long Does Cannabis Stay in Your System?

Cannabis is a perfect stress reliever in the hustle-bustle of modern lifestyle. 30,000 people are already prescribed cannabis for conditions like epilepsy, arthritis, and anxiety relief, marking its wide use.

However, with 1.5 million out of 2 million UK people using it monthly, the risks of its detection in health tests is quite high. Consistent THC or CBD content in your system not only affects your health but could hamper your legal proceedings or employment. Whether you are going through a drug test, a legal proceeding, or curious about how the body processes THC from cannabis, finding out how long cannabis stays in your system is crucial.

In this blog, we will cover how long cannabis can stay in your system depending on frequency of use, THC potency, and type of tests.

Effects of Cannabis on Your Body

Cannabis, on one hand, relieves pain, while higher doses may affect memory, lungs, and cognitive patterns. Cannabis’ psychological and physical effects come from the chemical contents in the substance.

The medium of cannabis use decides how THC moves through the body. With edibles, THC is lower but has long lasting effects. Your body takes longer to metabolise a larger amount of THC, suggesting that THC absorption is what influences the duration of cannabis in your system. THC breaks metabolites that remain in the body and decide how long they are detectable in urine, blood, saliva and hair tests. Your stomach would absorb it faster than the lungs.

But how long can cannabis stay in your system? Well, this depends on frequency and how your body processes the THC content.

Detection Timeframe by Tests

You are bound to undergo tests whether for medical purposes or other official reasons. Detection time of whether cannabis traces are in your system is based on which tests you take and how often.

Urine Test

Wondering how long does cannabis stay in your urine? Cannabis content is detected by finding the delta-9-THC and the metabolic contents that are present in urine.

For standard usage, it takes 2 to 3 days on the usual detection time. Cannabis would not be detected in your system after this period. If you are a heavy cannabis user, then this detection period would be different.

Table 1: Cannabis Detection Time for Urine Test

Urine samples are the most common ways for detecting marijuana intake.

Blood Test

Is cannabis detectable in your blood? Yes, heavy consumption of cannabis can be easily identified by a blood test.

But exactly how long does cannabis stay in your blood? To know this, consider the usage frequency, concentration in blood, and very recent intake. A combination of all these factors will decide the exact detection time.

The cannabis detection window with blood tests is relatively short. If you have used cannabis in between the last 2 to 12 hours, it can be detected. For heavy use cases, the detection time naturally extends.

Table 2: Detection Window for Cannabis (via Blood Tests)

Saliva Test

Saliva tests for cannabis target the detection of THC and the metabolites. The detection window ranges from a few hours to a couple of days after cannabis intake.

Do you have a saliva test scheduled? Wondering how long does cannabis stay in saliva? A combination of the cannabis potency, frequency of use, and your own metabolism determine the detection time.

While frequency is a crucial factor, your metabolism also factors in for the detection. The overall timeframe of detection ranges from 24 to 48 hours.

Table 3: Factors Based on Cannabis Detection Time for Saliva Test

Hair Test

Hair drug tests involve the removal of a small chunk of hair follicles and testing their chemical components. In this case, people do wonder how long does cannabis stay in your hair? Usually THC can be detected from your hair samples for up to 3 months from your last consumption.

A standard 1.5-inch sample of your hair is taken for the test. The misuse of the drug is detected from the hair sample, but the results might not be as reliable as others.

Table 4: Detection Window for Hair Consideration

While these tests are for cannabis use detection, they are not very reliable. The window of detection is higher compared to other tests.

Cannabis in Your System: Factors Affecting Its Stay Duration

Each test has specific requirements and a detection timeframe for cannabis. No matter which tests you take, certain factors influence the exact detection window.

Frequency of Cannabis Use

With occasional use, the THC detection window is much shorter. The THC in cannabis binds to the fat cells with frequent use. The more you use, the more it gets stored in your system and takes longer to be released in the blood for elimination. The fat-soluble metabolites are released over time, making them detectable in urine tests for more than a week.

Table 5: Usage Frequency and Detection Window for Cannabis

For heavy users, cannabis is likely to stay longer in your body; the reasons being fat accumulation and slow release of THC.

THC Content

THC is a deciding factor in how long a cannabis trace is found in your system. While taking a drug test, you are basically testing the THC content in your system, indicating cannabis use.

• High THC Potency: Cannabis with over 20% THC or higher is considered highly potent. Cannabis with high THC content results in the THC concentration and subsequent storage in fat-cells. High potency cannabis products like edibles or wax remain detectable in your system for longer periods of time.
• High Dosage: Experts recommend starting from 2.5mg to 40 mg/day of THC in cannabis for pain relief. THC dosage above this is likely to stay longer in your system and is easily detectable.

Body Fat

With cannabis use, THC is absorbed by your body and distributed evenly. A portion of it, however, is stored in the fat tissues which increases chances of detection after long periods. Thus, body fat is a key factor in deciding the duration of cannabis in your system. THC that gets stored in body fat is broken down slowly and increases the chances of detection.

Metabolism

Metabolites like THC stay in your system for an extended period. This is because your metabolism is affected by the fat-soluble characteristics of THC.

The above factors extend or limit the timeframe for cannabis’ presence in your body. Check these before you go for a drug test or general health test.

When Are You Likely to be Tested for Cannabis Use?

How long does cannabis stay in your body? Wondering why this is so important to people? We have the answer! Here are some situations for which people are concerned about the detection time.

• Pre-Employment Testing: Depending on the type of job, you might be asked for drug screening in high-risk sectors. Usually pre-employment tests include urine drug screening analysis and overall medical assessment (blood tests, saliva tests, BP check). While taking these tests, if there is any hint of cannabis use, it can negatively affect your job profile.
• Legal Proceedings: A court-ordered drug test is a legal requirement to prove an individual to be drug-free. In the UK, this is often done to safeguard children before they are given into custody. These legal tests are meant to determine if an individual is a frequent cannabis user or not, to assess their decision-making skills and responsible behaviour.

In Summation

Cannabis can be detected through urine, blood, saliva, and hair tests. It stays in your system from a few hours to weeks, depending on the potency and usage. But as cannabis detection is common in medical and legal tests, understanding these timeframes also becomes crucial. Have a thorough comprehension and only then proceed to use cannabis, preferably in microdosing.

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