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WebMD Symptom Checker

Bad breath, Bad taste in mouth, Cough and Decreased smell

WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms bad breath, bad taste in mouth, cough and decreased smell including Bronchitis, Asthma (child), and Constipation (child).

There are 19 conditions associated with bad breath, bad taste in mouth, cough and decreased smell. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.

  • Bronchitis

    Bronchitis, an inflammation of the bronchial tubes, causes cough, dark or yellow mucus, chest pain and more.

  • Asthma (child)

    Asthma is a chronic condition that causes swelling and narrowing in the airways, causing cough and more.

  • Constipation (child)

    Constipation is having less than three bowel movements a week, causing hard stools, abdominal pain and more.

  • Acute sinusitis

    Acute sinusitis, an inflammation of the sinuses, causes sinus pain and tenderness, facial redness and more.

  • Chronic sinusitis

    Chronic sinusitis, or sinus infections, cause a stuffy or runny nose, tooth pain, fever, sore throat and more.

  • Dry mouth

    Symptoms of dry mouth include sticky mouth, dry and cracked lips and tongue, sore throat, cavities, and more.

  • Gingivitis

    Gingivitis is a mild form of periodontal (gum) disease that can cause redness, swelling, and bleeding gums.

  • Medication reaction or side-effect

    Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more.

  • Dust exposure

    Dust exposure can cause congestion, runny nose, cough, shortness of breath, tightness in the chest, and more.

  • Nasal congestion

    Nasal congestion is a stuffy nose, and can be accompanied by blocked ears, sore throat, and more.

  • Smoke exposure

    Exposure to smoke can cause coughing, wheezing, shortness of breath, chest tightness, chest pain, and more.

  • Viral pharyngitis

    Viral pharyngitis is a sore throat caused by a virus, and causes throat pain and cold-like symptoms.

  • Constipation (adult)

    Constipation is having less than three bowel movements a week, causing hard stools, abdominal pain and more.

  • Emphysema

    Emphysema is a chronic lung condition that causes shortness of breath, a chronic cough, wheezing, and more.

  • Goiter

    A goiter is an enlarged thyroid gland, causing a lump in the throat below the Adam's apple.

  • Nasal polyps

    Nasal polyps, sacs of inflamed tissue in the nasal passages, can cause cold symptoms, snoring, and more.

  • Anosmia

    Anosmia is complete loss of smell, often caused by aging, head trauma, sinusitis, and respiratory infections.

  • Dental caries (cavities)

    Dental cavities are tiny holes in teeth and can aching pain in the tooth and jaw.

  • Eating certain foods

    Certain foods can cause unusual and sometimes unpleasant side effects, such as bad breath and heartburn.