Why Does My Poop Smell Like Weed: The Most Common Reasons

Picture this: you step into the bathroom, ready to answer nature’s call, but as you catch a whiff of the air, you’re hit with a peculiar and unexpected scent. It’s unmistakable. Your poop smells like weed. 

Yes, you read that right. While it may sound bizarre, it’s a phenomenon that has left many people scratching their heads and wondering about the connection between their bathroom visits and the unmistakable aroma of marijuana.


Why does my poop smell like weed? If you found yourself asking this question, keep on reading and learn more. 

choco chip cookie with marijuana buds

The Science of Smell

Before we dive into the peculiar odors emanating from our poop, it’s essential to understand the basics of how our sense of smell operates. 

The process begins when odor molecules are released from substances and travel through the air. These molecules enter our nasal passages, where they come into contact with specialized cells known as olfactory receptors.

Remarkably, humans possess approximately 400 different types of olfactory receptors, each designed to recognize a particular set of odor molecules. 

When these receptors are activated by odor molecules, they send signals to the brain, specifically to the olfactory bulb, where the information is processed and interpreted, giving us the perception of smell.

While it’s normal for stool to have a distinct odor, the intensity and character of the smell can vary depending on several factors. 

Diet, gut microbiota, digestive processes, hydration, and medications are some factors that will influence the way your shit smells. 

The Most Common Reasons Why Your Poop Smells Like Weed

While the connection between the smell of weed and your poop may seem perplexing, several common reasons could explain this unusual occurrence. Beyond feces smell, they can also be why your farts smell like marijuana. 

If you’re wondering why does my poop smell like weed, below are the possible reasons:

Recent Marijuana Consumption

The most obvious explanation is that the smell is a direct result of recent marijuana use. You might have been smoking weed or eating edibles, which is why your poop smells like cannabis. 

When you consume marijuana, the aromatic compounds, and metabolites present in the plant can be excreted through various bodily fluids, including urine and feces. 

Therefore, if you have recently consumed marijuana, it’s possible that the odor may manifest in your poop. This is not only true for smoking but also when you eat edibles. 


Certain foods can have strong odors that resemble the scent of marijuana, making your poop smell like weed.

For instance, consuming foods rich in sulfurous compounds, like onions and garlic, can contribute to a weed-like smell in your stool. 

Additionally, highly processed foods, spices, or heavily flavored ingredients may produce distinct odors during digestion.

Gut Microbiota

The composition of the bacteria in your gut, known as gut microbiota, plays a vital role in digestion and can make you smell cannabis. 

Imbalances or alterations in gut bacteria can potentially lead to changes in fecal odor and affect poop smell. It’s conceivable that marijuana use may impact the microbial environment in your gut, indirectly affecting the smell of your poop.

Metabolism and Elimination

The body’s metabolism and elimination processes can also contribute to the association between poop and weed smell. 

When marijuana or its metabolites are processed by your body, they can be excreted through waste products. The presence of these compounds during elimination can make your poops smell like weed.

Personal Hygiene and Cleanliness

Personal hygiene practices, including inadequate wiping or incomplete cleansing after bowel movements, can result in residual odors that may be mistaken for the smell of a marijuana plant. 

Ensuring proper hygiene and cleanliness in the bathroom is crucial to eliminating any lingering smells and preventing associations with marijuana odor.

Why Your Poop Turns Green 

Does weed make your poop green? Smoking weed and consuming marijuana edibles are unlikely culprits. Instead, it can be a result of the following: 


Consuming green leafy vegetables like spinach, kale, or broccoli can impart a green hue to your stool due to the chlorophyll content. Additionally, consuming foods or beverages with artificial green food coloring can also temporarily affect the color of your poop.

Rapid Transit Time

When your food moves quickly through the digestive tract, the bile, which is responsible for breaking down fats, may not have enough time to be fully processed. As a result, it might make your poop green.

Medications and Supplements

Certain medications, such as iron supplements or antibiotics, can cause changes in stool color, including greenish tones. If you’re taking any medications, consult your healthcare provider to understand the potential side effects.

If you experience persistent green poop accompanied by other symptoms like abdominal pain, diarrhea, or irritable bowel syndrome, it’s essential to consult a healthcare professional, as it may indicate an underlying issue. 

However, in most cases, green poop is nothing to be overly concerned about, especially if it resolves on its own.

When To Seek Professional Help 

In most instances, you don’t need professional help if your poops smell like weed. This is normal, especially after recent cannabis consumption. 

While changes in the smell of your poop, including a weed-like odor, can often be attributed to harmless factors, there are instances when it’s important to seek professional help. 

If you experience persistent changes in poop odor, especially when accompanied by other concerning symptoms like abdominal pain, diarrhea, or unexplained weight loss, it’s advisable to consult a healthcare professional. 

Additionally, if you have any specific concerns or questions about your digestive health, or if the odor persists despite lifestyle modifications, a healthcare provider, particularly a gastroenterologist, can provide a thorough evaluation and guidance. 


Now that you’re done reading, we hope we answered the question why does my poop smell like weed. 

As previously noted, the most common reason is because of recent cannabis consumption. Alternatively, other culprits include diet, gut microbiota, metabolism, and personal hygiene. 

Meanwhile, while marijuana can make your poop smell like weed, note that it does not impact its color. Instead, green poop can be because of diet, rapid transit time in your digestive system, or medications. 

Frequently Asked Questions 

What does marijuana smell like? 

Marijuana smells pungent, skunky, or earthy aroma, which is instantly recognizable to those familiar with it. Its scent can vary depending on the specific strain and the combination of terpenes and cannabinoids present.

Does Marijuana smell like poop? 

No, marijuana does not typically smell like poop. Marijuana has a distinct and recognizable aroma that is often described as pungent, skunky, or earthy, while the smell of poop is associated with fecal matter and has a different odor profile.

Does weed make you poop? 

Marijuana can have varying effects on individuals, and while some people may experience increased bowel movements or changes in digestion after consuming it, the direct impact of weed on bowel movements is not well-established and can vary from person to person.

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