Numbness at the tip of the tongue may be caused by tongue nerve damage, allergic reaction, food irritation, insufficient blood supply and other reasons. 1. Tongue nerve injury: the tip of the tongue is numb, considering that it may be the extraction of teeth or trauma leading to tongue nerve injury, resulting in numbness of the tip of the tongue, you can take methylcobalamin tablets as well as vitamin B2 and other drugs to regulate. 2. Allergic reaction: Eating shrimp, crab, mango and other allergenic food may cause the body to have an allergic reaction, thus making the oral mucosa and tongue and other parts of the numbness and other symptoms. 3. Food stimulation: If you consume peppers, chili peppers and other stimulating foods in your daily diet, it may affect the taste buds at the tip of the tongue, resulting in numbness of the tip of the tongue. 4. Insufficient blood supply: clinically, high blood pressure, high blood fat and atherosclerosis and other diseases can lead to insufficient blood supply to the brain, mainly due to high blood viscosity, slow blood flow, which makes the tip of the tongue insufficient blood supply resulting in numbness of the tip of the tongue.