Differential Diagnosis for Progressive Numbness of the Lower Lip
- Single most likely diagnosis
- Trauma or injury to the mental nerve: This is a common cause of numbness in the lower lip, often resulting from dental procedures, facial trauma, or local anesthesia.
- Other Likely diagnoses
- Dental problems (e.g., abscess, infection): Infections or abscesses in the teeth or gums can cause numbness or tingling in the lower lip.
- Nutritional deficiencies (e.g., vitamin B12 deficiency): Deficiencies in certain vitamins, such as vitamin B12, can cause numbness or tingling in the lips and mouth.
- Multiple sclerosis: This chronic condition can cause numbness or tingling in various parts of the body, including the lower lip.
- Do Not Miss diagnoses
- Stroke or transient ischemic attack (TIA): Although less common, numbness in the lower lip can be a symptom of a stroke or TIA, particularly if accompanied by other symptoms such as weakness, difficulty speaking, or vision changes.
- Lyme disease: In rare cases, Lyme disease can cause numbness or tingling in the face, including the lower lip.
- Sjögren's syndrome: This autoimmune disorder can cause numbness or tingling in the face, including the lower lip, as well as dry mouth and eyes.
- Rare diagnoses
- Sarcoidosis: This rare condition can cause numbness or tingling in the face, including the lower lip, as well as other symptoms such as skin lesions and joint pain.
- Leprosy: Although extremely rare in most parts of the world, leprosy can cause numbness or tingling in the face, including the lower lip, as well as skin lesions and disfigurement.
- Trigeminal neuralgia: This rare condition can cause sudden, severe pain or numbness in the face, including the lower lip, often triggered by touch or other stimuli.