The phenomenon of numbness of the upper lip is mainly considered to be related to dietary stimulation, allergic reaction, emotional impact, neuropathy and other factors.
1. Dietary stimulation: consuming spicy and stimulating foods, such as chili peppers and peppercorns, will cause some stimulation to the oral cavity, which will lead to the symptoms of numbness of the upper lip.
2. Allergic reaction: the upper lip comes into contact with allergens, which may trigger an allergic reaction and lead to symptoms of numbness of the lips.
3. Emotional impact: the body in the state of anger, anxiety, mental tension, may affect the sensory conduction function of the nervous system, and the symptoms of numbness of the lips.
4. Neuropathy: peripheral neuropathy caused by diabetes, central neuropathy caused by cerebral infarction can lead to numbness of the upper lip.
The appearance of the above symptoms may also be related to other diseases, it is recommended to consult a doctor to confirm the diagnosis, and follow the doctor’s instructions for treatment.