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Breath odor

Breath odor: Introduction

Bad breath is a reasonably common symptom that may be the simple result of poor dental hygiene. However, different types of breath odor can also indicate certain types of serious medical conditions. For example, a "fruity breath odor" is one of the characteristic symptoms of diabetic ketoacidosis, which can be fatal within hours or days. Another example is a "fecal breath odor" which can indicate certain types of intestinal blockage. Have any breath odor symptoms examined promptly by a medical professional....more »

» Review Causes of Breath odor: Causes | Symptom Checker » | Assessment Questionnaire »

Causes of Breath odor:

The following medical conditions are some of the possible causes of Breath odor. There are likely to be other possible causes, so ask your doctor about your symptoms.

» Review Causes of Breath odor: Causes | Symptom Checker » | Assessment Questionnaire »

Home Diagnostic Testing and Breath odor

Home medical tests possibly related to Breath odor:

Causes of Types of Breath odor:

Review the causes of these more specific types of Breath odor:

Breath odor: Symptom Checker

Listed below are some combinations of symptoms associated with Breath odor, as listed in our database. Visit the Symptom Checker, to add and remove symptoms and research your condition.

Symptom Checker

Symptom Checker

Breath odor Treatments

Review further information on Breath odor Treatments.

Stories from Users for Breath odor

Real-life user stories relating to Breath odor:

Message Boards for Breath odor

Symptom specific forums: The following patient stories in our interactive forums and message boards relate to Breath odor or relevant symptoms:

Diagnostic tests for Breath odor:

Various tests are used in the diagnosis of Breath odor. Some of these are listed below :

  • Physical examination
    • Note nature of odor - if sweet may suggest diabetic ketoacidosis ( sickly sweet smell), alcoholism ( distinctive), liver failure( a sweet smell) and maple syrup urine disease; if unpleasant or foul may suggest renal failure (urine or fish-like breath due to ammonia), anaerobic infections of the mouth, nose, pharynx or chest (putrid) or cigarettes ( distinctive).
    • Examine state of teeth and teeth hygiene and note whether the teeth are real or false - loose fitting teeth may be responsible for mouth ulcers or decayed teeth which may cause breath odor.
    • Remove false teeth for complete examination
    • Urine analysis - glucose and ketones present may suggest diabetic ketoacidosis as cause.
    • Culture of the mouth, gums and nasopharynx - may be necessary to diagnose anaerobic infections.
  • more tests...»

Medications or substances causing Breath odor:

The following drugs, medications, substances or toxins are some of the possible causes of Breath odor as a symptom. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

Breath odor: Comorbid Symptoms

Some of the comorbid or associated medical symptoms for Breath odor may include these symptoms:

Causes of General Symptom Types

Research the causes of these more general types of symptom:

Research the causes of related medical symptoms such as:

Causes of Similar Symptoms to Breath odor

Research the causes of these symptoms that are similar to, or related to, the symptom Breath odor:

Assessment Questionnaire: Questions your doctor may ask (and why!)

During a consultation, your doctor will use various techniques to assess the symptom: Breath odor. These will include a physical examination and possibly diagnostic tests. (Note: A physical exam is always done, diagnostic tests may or may not be performed depending on the suspected condition) Your doctor will ask several questions when assessing your condition. It is important to openly share any pertinent information to help your doctor make an accurate diagnosis.

It is also very important to bring an up-to-date list of all of your all medical conditions, medications including dosages, and names of numbers of any specialist you see.

Create your printable checklist here.

See Breath odor Assessment Questionnaire (15 listings)

Breath odor: Deaths

Read more about causes and Breath odor deaths.

Misdiagnosis and Breath odor

Chronic lung diseases hard to diagnose: Some of the chronic lung diseases are difficult to diagnose. Even the well-knowns conditions such as asthma or lung cancer often fail to be diagnosed early. Some of the chronic lung diseases more »

Breath odor: Research Related Doctors & Specialists

Other ways to find a doctor, or use doctor, physician and specialist online research services:

Hospitals & Clinics: Breath odor

Research extensive quality ratings and patient safety measures for hospitals, clinics and medical facilities in health specialties related to Breath odor:

Breath odor: Related Rare Diseases

Rare types of medical conditions and diseases in related medical categories:

Breath odor: Undiagnosed Conditions

Conditions that are commonly undiagnosed in related areas may include:

Causes of Breath odor listed in Disease Database:

Other medical conditions listed in the Disease Database as possible causes of Breath odor as a symptom include:

Definitions of Breath odor:

An offensive, foul breath odor resulting from a variety of causes such as poor oral hygiene, dental or oral infections, or the ingestion of certain foods.
- (Source - Diseases Database)

Organs affected by Breath odor:

The list of organs typically affected by Breath odor may include, but is not limited to:

Detailed list of causes of Breath odor

The list below shows some of the causes of Breath odor mentioned in various sources:

How Common are these Causes of Breath odor?

This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Breath odor. Of the 133 causes of Breath odor that we have listed, we have the following prevalence/incidence information:

  • 8 causes are "very common" diseases
  • 6 causes are "common" diseases
  • 2 causes are "uncommon" diseases
  • 0 causes are "rare" diseases
  • 7 causes are "very rare" diseases
  • 121 causes have no prevalence information.

Conditions listing medical symptoms: Breath odor:

The following list of conditions have 'Breath odor' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

Select from the following alphabetical view of conditions which include a symptom of Breath odor or choose View All.

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Causes of Breath odor Based on Risk Factors

This information shows analysis of the list of causes of Breath odor based on whether certain risk factors apply to the patient:

  • Diabetes - history of diabetes or family history of diabetes?

    Doctors and specialists: Who should I consult about Breath odor?

    Depending on the seriousness of the onset of Breath odor, you may want to consult one of the following medical professionals.

    Important:In extreme cases, always seek advice from emergency services :

    What are the alternative names for Breath odor:

    Fetor oris, Foul breath, Halitosis, Bad breath
    - (Source - Diseases Database)

    Classifications of Breath odor:

    Subtypes of Breath odor:

    Bad breath (100 causes), Breath with fecal odor (8 causes), Breath with fruity odor (3 causes), Halitosis (89 causes)

    Medical Conditions associated with Breath odor:

    Breathing symptoms (3381 causes), Breath symptoms (3023 causes), Odor symptoms (148 causes), Respiratory symptoms (5166 causes), Breath odour symptoms (44 causes), Odour symptoms (148 causes), Mouth symptoms (6864 causes), Respiratory tract symptoms (5166 causes), Throat symptoms (3410 causes), Body symptoms (5672 causes), Head symptoms (10192 causes), Face symptoms (8109 causes)

    Symptoms related to Breath odor:

    Odor symptoms (148 causes), Body odor (43 causes), Dental symptoms (886 causes), Dental hygiene, Breathing symptoms (3381 causes), Reflux, Acidic taste in mouth (59 causes), Taste symptoms (94 causes), Poor dental hygiene, Dental disorders, Tooth decay (91 causes), Dental plaque, Tooth abscess (7 causes), Tooth infections (8 causes), Gingivitis, Gum disease, Periodontitis

    Medical articles on signs and symptoms:

    Doctor-patient articles related to symptoms and diagnosis:

    These general medical articles may be of interest:

    Medical News summaries about Breath odor

    Our news pages contain the following medical news summaries about Breath odor and many other medical conditions:

    Evidence Based Medicine Research for Breath odor

    Medical research papers related to Breath odor include:

    Research More Evidence-Based Medicine at

    More Ways To Research Medical Signs and Symptoms:


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