What Causes Numbness in the Tongue While Brushing Teeth?

Numbness of the tongue during toothbrushing may be caused by non-pathological factors such as irritation from toothpaste, or it may result from pathological conditions such as intracranial space-occupying lesions or cerebral infarction. Specific analyses are as follows:

        I. Non-pathological Factors

If the ingredients in toothpaste are particularly irritating and the tongue is highly sensitive, this may lead to abnormal local sensations, resulting in numbness of the tongue. Generally, discomfort resolves spontaneously after adequate rest.

    II. Pathological Factors

1. Intracranial Space-Occupying Lesions

Numbness of the tongue during toothbrushing may also be caused by intracranial space-occupying lesions, such as brain tumors. As the tumor progressively enlarges, it may compress the lingual nerve, leading to this symptom. Patients may simultaneously experience other symptoms including headache, vomiting, and disturbances in consciousness.

2. Cerebral Infarction

Patients with cerebral infarction may also experience tongue numbness while brushing their teeth. This typically occurs due to cerebral atherosclerosis, causing ischemia and edema of brain cells, thereby damaging or compressing the central nervous system. Symptoms such as choking, coughing, and tongue numbness may appear. After stimulation during toothbrushing, the sensation of tongue numbness may significantly worsen.

      In addition to the above three causes, other conditions such as ischemic cerebrovascular disease could also be responsible. It is recommended that patients promptly seek evaluation at a正规 hospital to determine the underlying cause and receive appropriate symptomatic treatment.