A little numbness of the tongue is not correct, it should be numbness of the tongue, which can be seen in stroke, intracranial space-occupying lesions, drug effects, other factors. 1. Stroke: hypertension and diabetes, as well as hyperhomocysteinemia patients, if the tongue numbness, speech is unfavorable or limb movement disorders, need to consider the occurrence of stroke. It is recommended to go to the neurology department of the hospital for consultation and examination. 2. Intracranial space-occupying lesions: masses or other space-occupying compression of the hypopharyngeal nerve, such as the hypoglossal nerve, can be manifested as numbness of the tongue. 3. Drug effects: clinical oral gentamicin, etc., may also cause symptoms of tongue numbness. 4. Other factors: ear, nose and throat lesions, post-surgery or radiotherapy, or spicy stimulating diet can also cause patients may also produce numbness of the tongue. If the symptoms do not improve, patients should go to the hospital as soon as possible, according to the specific conditions, active treatment.