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Bad breath

Bad breath: 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 Bad breath: Causes | Symptom Checker »

Causes of Bad breath:

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

» Review Causes of Bad breath: Causes | Symptom Checker »

Home Diagnostic Testing and Bad breath

Home medical tests possibly related to Bad breath:

Causes of Types of Bad breath:

Review the causes of these more specific types of Bad breath:

Review causes of types of Bad breath in more specific categories:

Bad breath: Symptom Checker

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

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Bad breath Treatments

Review further information on Bad breath Treatments.

Alternative Treatments for Bad breath

Alternative treatments or home remedies that have been listed as possibly helpful for Bad breath may include:

Bad breath: Comorbid Symptoms

Some of the comorbid or associated medical symptoms for Bad breath 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 Bad breath

Research the causes of these symptoms that are similar to, or related to, the symptom Bad breath:

Bad breath: Deaths

Read more about causes and Bad breath deaths.

Misdiagnosis and Bad breath

Chronic lung diseases hard to diagnose: Some of the chronic lung diseases are difficult to diagnose. Even the well-knowns conditions such as more »

Bad breath: Research Related Doctors & Specialists

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

Hospitals & Clinics: Bad breath

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

Bad breath: Related Rare Diseases

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

Bad breath: Undiagnosed Conditions

Conditions that are commonly undiagnosed in related areas may include:

Causes of Bad breath listed in Disease Database:

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

Definitions of Bad breath:

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)

Detailed list of causes of Bad breath

The list below shows some of the causes of Bad breath mentioned in various sources:

How Common are these Causes of Bad breath?

This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Bad breath. Of the 100 causes of Bad breath that we have listed, we have the following prevalence/incidence information:

  • 6 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
  • 88 causes have no prevalence information.

Conditions listing medical symptoms: Bad breath:

The following list of conditions have 'Bad breath' 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 Bad breath or choose View All.

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Causes of Bad breath Based on Risk Factors

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

  • Travel - has the patient travelled recently?
  • Diabetes - history of diabetes or family history of diabetes?

    What are the alternative names for Bad breath:

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

    Classifications of Bad breath:

    Subtypes of Bad breath:

    Breath with fecal odor (8 causes), Breath with fruity odor (3 causes)

    Medical Conditions associated with Bad breath:

    Breathing symptoms (3381 causes), Breath odor (133 causes), Breath symptoms (3023 causes), Respiratory symptoms (5166 causes), Odor symptoms (148 causes), Mouth symptoms (6864 causes), Respiratory tract symptoms (5166 causes), Odour symptoms (148 causes), Breath Odour symptoms (44 causes), Throat symptoms (3410 causes), Body symptoms (5672 causes), Head symptoms (10192 causes), Face symptoms (8109 causes)

    Symptoms related to Bad breath:

    Body odor (43 causes), Breath symptoms (3023 causes), Odor symptoms (148 causes), Fruity breath, Hallitosis, Acetone breath, Bitter almond breath, Dental caries (61 causes), Respiratory tract infections, Diabetes (212 causes)

    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 Bad breath

    Our news pages contain the following medical news summaries about Bad breath and many other medical conditions:

    Evidence Based Medicine Research for Bad breath

    Medical research papers related to Bad breath include:

    Research More Evidence-Based Medicine at

    Related medical articles from our Disease Center for Halitosis:

    More Ways To Research Medical Signs and Symptoms:


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