Contagious?
No.
← All explanationsOral lichen planus
What can white lace-like lines inside the mouth mean?
Oral lichen planus is a chronic inflammatory condition of the oral lining. Fine white lace-like lines are common, but red or sore areas can also occur. It is not contagious. Examination and sometimes biopsy help distinguish similar conditions.
For training & practice ↓
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Different appearances
White reticular lines may cause little discomfort. Red or eroded areas may burn with food. Pictures alone cannot establish the diagnosis.
Understand inflammation
Immune activity is involved. Similar changes may have other causes; do not stop medicines or replace fillings on your own initiative.
Monitor over time
Treatment can ease symptoms. Regular review remains important because findings can change and there is a small risk of malignant change.
At a glance
Always painful?
No; some forms cause few symptoms.
Important?
Establish the diagnosis and monitor it.
Knowledge in motion
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Silent educational film with German on-screen text and simplified teaching images. Not a patient case or a promised treatment outcome. The full English explanation is available below.
Read the film text in English
Different appearances
White reticular lines may cause little discomfort. Red or eroded areas may burn with food. Pictures alone cannot establish the diagnosis.
Understand inflammation
Immune activity is involved. Similar changes may have other causes; do not stop medicines or replace fillings on your own initiative.
Monitor over time
Treatment can ease symptoms. Regular review remains important because findings can change and there is a small risk of malignant change.
Often confused
Lichen planus and lichenoid reactions
Similar appearances may occur in relation to medicines or contact reactions. Individual assessment is needed to distinguish them.
Quick answers
Is it contagious?
No. It is not a transmissible infection.
Does treatment reliably make it disappear?
No. The condition can fluctuate; treatment commonly aims to control inflammation and symptoms.
When is earlier review needed?
A new persistent ulcer, hard area, bleeding or marked change should be assessed without waiting for routine review.
At the practice
For a personal discussion
Editorially suggested question to discuss with Dr Niusha Barahmand Pour:
How has the finding been classified, and which review interval fits my situation?
Persistent white or burning areas can be examined and referred for specialist assessment when needed.
Discuss a mucosal changeAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Reticular
- Arranged in a network.
- Erosive
- Involving superficial loss of the lining.
- Lichenoid
- Having an appearance resembling lichen planus.
Make the distinction
Similar appearances may occur in relation to medicines or contact reactions. Individual assessment is needed to distinguish them.
Sources and context
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.