Medically the review by Alana Biggers, M.D., MPH, specialty in internal medicine — written by Tim Jewell on march 25, 2019

Share on Pinterest
You might wonder if cigarette smoking cigarettes has any kind of effect on her bowels, favor coffee does. After ~ all, no nicotine a stimulant, too?

But the research study on the intersection between smoking and also diarrhea is mixed.

You are watching: Why does nicotine make you poop

Read on to learn more, and the various other harmful side impacts of cigarettes.

Laxatives are substances the can free up stool that’s stuck or affected in your big intestine (colon), letting the pass much more easily through your colon.

Laxatives may additionally be supplied to reason the muscle reactions in your bowel that relocate stool along, i beg your pardon is dubbed a bowel movement. This kind of laxative is recognized as a stimulant laxative due to the fact that it “stimulates” a contraction that pushes stool out.

Many world feel nicotine and other usual stimulants like caffeine have actually a comparable effect top top the bowels, causing an acceleration of bowel movements. However the research tells a more complex story.


So, what does the research study actually say around smoking and also bowel movements? walk it cause diarrhea?

The brief answer: We don’t recognize for sure.

Few direct links have actually been found between smoking a cigarette and also having a bowel movement. But a most research has actually been excellent on the effects of smoking cigarettes on inflammation bowel disease (IBD), of which diarrhea is a major symptom.

The very first thing to understand is the smoking may make diarrhea symptom of IBD — favor Crohn’s disease, a kind of IBD — more severe.Smoking and also the digestive system. (2013). Https://

A 2018 testimonial of research on smoking, Crohn’s disease, and ulcerative colitis (another kind of IBD) concluded that nicotine therapy may assist control the symptom of ulcerative colitis for former smokers — yet it’s just temporary. There’s no irreversible benefit. Over there have also been reports that smoking have the right to actually boost ulcerative colitis activity.Berkowitz L, et al. (2018). Influence of cigarette smoking cigarettes on the gastrointestinal tract inflammation: Opposing results in Crohn’s condition and ulcerative colitis. DOI: 3389/fimmu.2018.00074

On peak of that, researchers keep in mind smoking deserve to raise your hazard for occurring Crohn’s disease. It can also make the symptoms lot worse due to inflammation in the intestines.

Moreover, cigarette smoking may additionally raise your hazard for bacter infections that impact the intestines and also cause diarrhea.

A 2015 examine including more than 20,000 participants released in BMC publicly Health uncovered that those who smoke had a higher infection price of Shigella bacteria. Shigella is an minister bacterium regularly responsible for food poisoning, which leads to diarrhea.Das SK, et al. (2015). Diarrhoea and also smoking: An evaluation of years of observational data from Bangladesh. DOI: 1186/s12889-015-1906-z

On the various other hand, the same study uncovered that smoking causes the stomach come produce an ext acid, therefore smokers are less likely to develop Vibrio cholera infections. This is an additional bacterium that commonly causes infections and also diarrhea.

And there’s an ext research that shows just just how uncertain the connect is in between smoking and bowel movements.

See more: My First Days In The White House : Huey P, 9780976958314: My First Days In The White House

The study did find that coffee raised rectal ton by 45 percent. It found a really minor (7 percent) boost in rectal ton from nicotine — which was almost as high together the effect by a placebo water pill at 10 percent. This argues that nicotine may have actually nothing to carry out with pooping.