Bad breath like rotten eggs ( causes and remedies )

Bad breath like rotten eggs ( causes and remedies )

Table of Contents

Bad breath may be like a nightmare for you. Sometimes, due to the decomposition of some foods in the intestine, a gas called hydrogen sulfide (H2S) is created, which is the cause of belching with the smell of sulfur or a perfume similar to rotten eggs. 

So, if your burp smells like eggs and causes bad breath, it’s not because you ate rotten eggs. Sometimes, the smell of rotten eggs from belching indicates a bacterial infection in the stomach. Sometimes, the following factors cause this smell:

  • Irritable bowel syndrome
  • Bacterial overgrowth in the gut
  • Parasitic infection in the intestine

Many foods containing sulfur can change the smell of belching, leading to an awful smell in the mouth which is an unpleasant smell. .

To maintain public health and safety, it is vital to find the cause of sulfur-smelling belching and learn how to eliminate unfavorable mouth smells at home with the help of natural remedies.

Burping with the smell of sulfur is directly related to your digestive system. As soon as you chew food, your digestive system begins the process of digestion to extract nutrients from it. Gastroenterologist Dr. Jennifer Robinson says the stomach breaks down food before reaching the small and large intestines.

Related: “What Are Acute Gastroenteritis In Children?

Experts at The National Institute of Diabetes and Digestive and Kidney Diseases say gas is produced by swallowing too much air or when bacteria in the large intestine break down undigested food And causes the smell of rotten eggs in the mouth.

Conditions such as

  • intestinal bacterial overgrowth,
  • irritable bowel syndrome
  • and gastroesophageal reflux disease (GERD) can also cause excess gas.
gastroesophageal reflux disease (GERD) 741

Experts in the journal Antioxidants & Redox Signaling say that the breakdown of certain foods creates a gas called hydrogen sulfide (H2S) in the gut. Hydrogen sulfide smells like rotten eggs.

This sulfuric smell will be relieved through the mouth when burping and from the anus when passing gas.

The cause of bad breath or belching with the smell of sulfur

Now that you know the cause of belching, let us mention some diseases and foods that cause belching with the smell of sulfur.

  • Consuming foods containing sulfur

    Consuming large amounts of sulfur-containing foods can cause a rotten egg-like smell in the burp. When bacteria break down these foods in the digestive system, hydrogen sulfide is produced, changing the smell of burps and gas from the anus.

    However, this does not mean we should eliminate sulfur-containing foods from our diet. These foods are good for our health. According to Nutrition & Metabolism magazine, sulfur is the third most abundant mineral in our body. 

    Sulfur amino acids are necessary for the proper functioning of cells and to remove toxins from the body. Of course, eggs also contain a lot of sulfur, and eating them has many health benefits for the body. 

    Eggs are a good source of protein, and studies have shown that consuming more eggs does not increase the risk of cardiovascular disease.

    Related: “Tooth Pain, No Cavities, Treatment, And Remedies

    The Journal of Pharmacology Research reports that green leafy vegetables are an essential source of sulfur compounds.

    Vegetables such as kale, cabbage, Brussels sprouts, and radishes get their pungent aroma from sulfur. Research conducted on the properties of green leafy vegetables shows that these vegetables can help prevent cancer by removing potentially carcinogenic substances from the body. Leafy greens are also beneficial for keeping the blood healthy.

    Related: “The Best Guideline For The Type Of Skin Cancer”

useful egg
  • Helicobacter pylori infection

     A bacterial infection in the stomach caused by a species of bacteria called Helicobacter pylori (H. pylori) can make burps smell sulfurous.

    H. pylori infection is responsible for peptic ulcer, chronic gastritis, and flatulence with increased gas. The Journal of Clinical Gastroenterology reported that Helicobacter pylori infection causes the accumulation of hydrogen sulfide and other sulfur compounds in the intestine. 

    Bad breath and belching with the smell of sulfur are among the complications of this infection.

    It goes without saying that dental infections also cause bad breath. For more information on this topic, read the article “tooth infection swelling.” and also the article “Treatment of tooth infection swelling” for its treatment.

  • Irritable bowel syndrome (IBS)

    If you are facing with irritable bowel syndrome, it is also normal for you to burp with a sulfur smell as well as bad breath. IBS is thought to be caused by discomfort in the digestive system or disorders in the gut or immune system

    However, doctors are still determining exactly what causes IBS. In addition to burping with a sulfur smell, irritable bowel syndrome may also cause diarrhea after eating, gas pain in the chest, and rectal discharge. 

    Related: “How To Treat COPD Symptoms? Are You Struggling To Breathe?

    The fact is that irritable bowel syndrome can produce high levels of hydrogen sulfide in the breath and cause terrible and unpleasant smells from the mouth. This fact has been proven in a study published in Breath Research.

     Researchers have found that people with irritable bowel syndrome often have bacterial overgrowth in their intestines. This uncontrolled growth causes more sulfur to be produced in the gut and expelled through the mouth by breathing or belching.

    Related: “How To Prevent Viral Infections?

Irritable bowel syndrome (IBS) 99557
  • Bacterial overgrowth

    Small intestinal bacterial overgrowth (SIBO) causes belching that smells like sulfur. Bacteria are needed to break down food. 

    However, their excessive growth leads to the production of more hydrogen sulfide. Gut and Liver magazine experts explain that fermentation and bacteria in the intestines can cause the collection of gases such as hydrogen sulfide, methane, and carbon dioxide. 

    Related: “When Should I Start Brushing My Baby’s Teeth?

    In the research conducted by this researcher, the breath test, which is used to diagnose SIBO, has confirmed the existence of hydrogen sulfide in the breath of affected people. 

    In addition to causing belching with the smell of sulfur and bad breath, the overgrowth of bacteria causes the following symptoms:

    • Abdominal pain after eating
    • diarrhea
    • tiredness
    • Unexplained weight loss
    • Skin disorders such as eczema, acne, or rosacea
    • Parasite contamination


    Related: “Tooth And Ear Pain On The Same Side

    One of the signs of a parasitic infection in the small intestine is belching that smells sulfuric awful. Parasitic infection is usually caused by drinking or eating contaminated food and water.

    Related: “How Do You Know If Pneumonia Is Viral Or Bacterial?

    Other symptoms of parasitic infection in the digestive tract include:

    • watery diarrhea
    • White spots in the stool
    • to inflate
    • Excreting much gas from the anus

    A study published in 2015 shows that the Giardia parasite can affect the gut and cause more hydrogen sulfide to form.

    Dr. Charles Patrick Davis, an expert on the eMedicineHealth website, says that “sulfur-tasting belching” is one of the main symptoms of a parasitic infection.

    See a doctor if you experience the following symptoms:

    • Diarrhea for one to two weeks
    • Unexplained weight loss
    • to inflate
    • Frequent belching that smells of sulfur

    Related: “Gingivitis Treatment And Symptoms / With Or Without Gum Pain

Bacterial overgrowth 0012

The simplest ways to be happy

How do we get rid of burping with the smell of sulfur naturally?

There are many ways to reduce hydrogen sulfide content in the intestine. Instead of masking bad breath, these natural home remedies help treat the source of sulfur-smelling burps.

Related: “How To Fix Rotten Teeth Without Going To The Dentist?

  • Drink lots of water.

    One of the first steps to reduce the smell of sulfur in burps and breath is to drink plenty of water. According to Mayo Clinic specialist Dr. Michael Pico, water helps digest food, facilitates the breakdown of nutrients, and can increase absorption.

    Apart from helping to improve digestion, drinking water has many healing properties. Water helps you lose weight and keeps your joints moist and soft. And prevent severe joint pain. Treating hot flashes and eliminating waste and toxins are other properties of drinking water.

    Related: ‘How To Keep Healthy Oral Microbiome

  • Reduce consumption of foods containing sulfur.

    If you are bothered by the smell of sulfur on your breath or belching, you can eat fewer foods that contain sulfur compounds. According to the advice of nutritionist Dr. Elizabeth Ward, garlic and onions usually increase the smell of sulfur or make it last longer.

    By being absorbed into the bloodstream, these substances cause this smell to be created through exhalation.

    Related: “The Science of White Blood Cells: Inside the Body’s Invisible Army

Healthy meals


Finally, it must be said that It is clear and obvious that before presenting these scientific issues that the cause of bad breath, every person should be aware of the necessity of treating unpleasant smells from the mouth. But with this article, we learned that this fact has various scientific reasons, and its treatment is not only very important for the health of the individual but also necessary for social health.

Share in :
Explore more
decay under filling - by dr.sanaz
tooth by dr.sanaz

Leave a Reply

Your email address will not be published. Required fields are marked *

Author and specialist

Dr. Majid Zahrabi,


  • Board Certified Neurosurgeon
  • DHA certificate holder
  • Plantation certificate holder, France
  • Certified holder of Discogol, France
  • A pioneer in the non-surgical treatment of disc herniation in the Middle East and CIS countries.
  • Under the training and coaching of Professor Jacques Theron (founder of Discogel Therapy) since 2008
  • More than 400 successful cervical and 1300 lumbar discogel injections
  • Trained and certified several neurosurgeons and spine surgeons in the Middle East and CIS countries for the treatment of Discogel
  • Strong belief in patient-centered care planning and participation
  • Neurosurgeon and spine surgeon at Imam Khomeini and Amir Mazandarani Hospital, Sari, Iran, with more than 430 surgeries annually, 2000-2011
  • Neurosurgeon and spine surgeon at Farmaniyeh, Nikan and Yas Sepid Hospital, Tehran, Iran, with more than 400 surgeries annually, 2011-2012
  • Neurosurgeon at Iranian Hospital, Dubai, 2022-2023
  • Since 2015, he has been working as a reference doctor for the treatment of intervertebral disc herniation with Discogel and has trained many doctors of spine-related specialties in various countries of the Middle East and CIS in person/practically and online.



  • Individual training sessions under the direct supervision of Professor Jacques Theron in Discogel treatment, 2008-2020
  • Training sessions under the supervision of Professor Thierry Boye on spinal implants, 2007
  • Participation and presentation in several national and international medical and neuro-spinal conferences
  • Board certificate by Iran Neurosurgery Board, 2001
  • Neurosurgery assistant training course, Isfahan University of Medical Sciences, Isfahan, Iran, 1996-2001 (In 2001, he graduated from Isfahan University of Medical Sciences with the first rank in the country.
  • His thesis the titled:The Application of human amniotic membrane in repair of dura matter in dogs.” ( It was happening for the first time in the world. )
  • General medical education, Tabriz University of Medical Sciences, Tabriz, Iran, 1984-1993


Published books:

  • CT scan of the brain for doctors
  • Etiology and treatment of painful spine disorders
  • Atlas of diagnosis, prevention, and treatment of spine disorders
  • The most common mistakes in the treatment of spinal disorders
  • Reading brain CT scan in simple language (3rd place in the book of the year)
  • Treatment of head and spine injuries

Publications and articles:

  • Bacteriostatic and bactericidal effects of DISCOGEL® (https://www.researchgate.net/)
  • Muscle recovery, reduction of pain, and improvement of movement strategies in patients with lumbar discopathy after injection of Discogel.
  • The article on the initial results of the treatment of intervertebral disc herniation with discogel injection, which won the second-best poster rank at the Pan Arab International Congress of Interventional Radiology (March 14-16, 2015) and was accepted for presentation at the Chicago Pain Congress.
  • The use of human amniotic membrane in dura mater repair in dogs, a study for the first time in the world.



  • Annual Congress of Physiotherapists of Iran, 2019
  • Chicago International Pain Congress, 2019
  • Iran International Pain Management Congress, 2018
  • Annual Congress of Physiotherapists of Iran, 2018
  • Presentation of Discogel as an innovative solution for the treatment of spinal disc herniation in Armenia for orthopedic specialists and neurosurgeons, 2017
  • First Live Workshop and Seminar on Minimally Invasive Disc Therapy (DISCON), 2017
  • Presentation of Discogel as an innovative solution for the treatment of spinal disc herniation in Azerbaijan for orthopedic specialists and neurosurgeons, 2016
  • Seminar of Iranian official managers, 2016
  • Presentation of Discogel as an innovative solution for the treatment of spinal disc herniation in Tajikistan for orthopedic specialists and neurosurgeons, 2016
  • International Neurological Intervention Congress in Iran, 2014
  • Educational seminar for nurses on treatment approaches for head and spine trauma, 2014
  • Educational seminar for general practitioners on treatment approaches for head and spine trauma, 2014
  • Speech at the Retraining Seminar for General Practitioners and Specialists in Dubai (Discon) in 2017
  • Speech in the internal retraining courses of Irani Hospital, Dubai
  • Holding lecture sessions and practical workshops on the treatment of intervertebral disc herniation with discogel injection in Azerbaijan, Tajikistan, Ukraine, Oman, and Armenia during the years 2015 to 2021.
  • Giving a lecture and holding a practical workshop for neurosurgeons in Vietnam at Ho Chi Minh City University in 2023

Dr. Majid Zohrabi started treating his patients in Dubai in 2022 and continues his activities in private medical centers in the UAE.