Lip Sores
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Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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Content updated on Jan 4, 2023

About the symptom

Erosion of the lip refers to breakdown of the outer layers of the surface on any part of the lip.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Disorder of consciousness

  • Numbness / sensory disorder

  • Repeated fever above 38 ℃

  • Edema

Possible causes

  • Angular cheilitis

    Inflammation of the corners of the lips. Causes include infection (bacterial, viral, or fungal) and irritants, such as constant contact with saliva or excessive dryness. It is more common in people with nutritional deficiencies and immune system disorders.

  • Cheilitis

    Inflammation of the lips. Causes include infection (bacterial, viral, or fungal) and irritants, such as constant contact with saliva or excessive dryness.

  • Candidiasis (oral, hands and feet)

    Normal human skin contains bacteria and fungi. Candidiasis occurs when the fungus overgrows and invades the skin. Risk factors include warm moist environments and a weakened immune system.

  • Shingles
  • Lip licker's dermatitis
  • Stomatitis
  • Pellagra
  • Herpes simplex

Related serious diseases

  • Kawasaki disease

    A disease caused by the body's immune system attacking the blood vessels. Kawasaki disease requires hospitalization for treatment and ultrasound scans. Regular follow-up scans are important to reduce the risk of future heart attacks.

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you have sores or erosions on your lips?

  • Do you have itchy skin?

  • Do you have any pain or tingling in the affected areas of the skin?

  • Do you have a fever?

Other Related Symptoms

Similar symptoms or complaints

Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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