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Learn about your bluish or clear mouth sore, including causes and common questions. Or get a personalized analysis of your bluish or clear mouth sore from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

Bluish or Clear Mouth Sore Checker

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Your Bluish or Clear Mouth Sore May Also be Known as:
Blue mouth blister
Blue mouth bump
Blue mouth lump
Blue mouth sore
Blue spot in mouth / gum
Clear mouth blister
Clear mouth bump
Clear mouth lump
Milky mouth blister

Top 3 Bluish or Clear Mouth Sore Causes

  1. 1.Cold Sore

    Cold sores (also called oral herpes or fever blisters), are viral infections of the mouth caused by the herpes virus type 1. You were probably infected very early in life as a child when an adult kissed you. The virus stays asleep (dormant) and causes infections every now and then after exposure to lots of sun or emotional/physical stress. It is contagious when an outbreak is happening, but treatment is limited unless you are immunocompromised.

    You can safely stay home or try some minor treatments. As a viral infection, it will go away on its own without antibiotics. Balm mint cream (1%) or topical rhubarb-sage cream may improve symptoms, but it's not standard treatment.

    Rarity:
    Uncommon
    Top Symptoms:
    mouth lesions, pain on the outside of the lips, itchy mouth, burning pain on the outside of the lips, lip numbness
    Symptoms that always occur with cold sore:
    mouth lesions
    Urgency:
    Self-treatment

    Bluish or Clear Mouth Sore Checker

    Take a quiz to find out why you’re having bluish or clear mouth sore.

    Take a quiz
  2. 2.Psoriatic Arthritis

    Psoriasis is a skin disease that causes itchy or sore patches of thick, red skin with silvery scales. Some people who have psoriasis also get a form of arthritis (inflammation and swelling of joints) called psoriatic arthritis.

    You should visit your primary care physician to manage this disease as there are many treatment options. A treatment plan will often consist of therapy (physical, occupational, massage), patient education, exercise and rest, devices to protect joints, medicine and/or surgery.

    Rarity:
    Rare
    Top Symptoms:
    joint pain, lower back pain, shoulder pain, upper back pain, joint stiffness
    Urgency:
    Primary care doctor
  3. 3.Head and Neck Cancer

    There are five main types of head and neck cancer, which are all named according to the part of the body where they develop: laryngeal (voice box), nasal cavity and sinus, nasopharyngeal (air passage way behind the nose), oral (mouth), and salivary gland cancers. Most of these cancers are squamous cell carcinomas (SCCs), meaning they begin in the flat (squamous) cells that make up the thin surface layer of the structures in the head and neck.

    You should visit your primary care physician who will coordinate your care with a cancer specialist (oncologist) for further testing. It is impossible to definitively diagnosis head and neck cancers without lab testing and biopsy. Treatment is likely to include surgery and chemotherapy.

    Rarity:
    Rare
    Top Symptoms:
    loss of appetite, unintentional weight loss, hoarse voice, trouble swallowing, pain with swallowing
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Bluish or Clear Mouth Sore

  • Q.How many sore/blister/bumps do you have?
  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?
  • Q.Have you experienced any nausea?
  • Q.When did you develop the sore/blister/bump?

If you've answered yes to one or more of these questions, check our bluish or clear mouth sore symptom checker.

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Bluish or Clear Mouth Sore Symptom Checker Statistics

  • People who have experienced bluish or clear mouth sore have also experienced:

    • 14% Fever
    • 14% Pain in the Back of the Neck
    • 14% Pain in the Lower Right Abdomen
  • People who have experienced bluish or clear mouth sore had symptoms persist for:

    • 47% Less Than a Day
    • 28% Less Than a Week
    • 10% Over a Month
  • People who have experienced bluish or clear mouth sore were most often matched with:

    • 40% Cold Sore
    • 10% Psoriatic Arthritis
    • 10% Head and Neck Cancer
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

Bluish or Clear Mouth Sore Checker

Take a quiz to find out why you’re having bluish or clear mouth sore.

Take a quiz