There are many reasons for numbness of the gums, such as dietary factors, oral inflammation, peripheral neuropathy and so on. 1. Dietary factors: If the patient eats chewy food, such as betel nut and beef cramp, it can lead to numbness of the gums due to prolonged chewing. 2. Oral inflammation: gingivitis, periodontitis, apical periodontitis and other inflammatory diseases can also lead to numbness of the gums, and even cause local redness, swelling and pain. 3. Peripheral neuropathy: If the oral peripheral neuropathy, can also lead to the phenomenon of numbness of the gums. There may be other reasons for numbness of the gums, it is recommended that patients go to the hospital in a timely manner to improve the examination, diagnosed under the guidance of the doctor to take standardized treatment, do not ignore the symptoms, take it lightly, so as not to lead to the emergence of adverse consequences.