There are many causes of numb lips; they range from mild to serious. Serious causes of numb lips include allergic reactions and neuropathy, in which nerves cannot carry a signal between the lips and the brain.
Common causes of numb lips include:
1-Cold temperatures
2-Food allergies (allergic reaction to certain foods)
3-Medication side effects
4-Raynaud’s phenomenon (spasms of small blood vessels of the fingers and toes, reducing blood circulation. Raynaud’s phenomenon is secondary to many autoimmune disorders such as lupus)
5-Tetany (muscle contractions caused by low calcium levels in the blood)
Disease causes of numb lips
Numb lips can also be caused by certain diseases and conditions including:
1-Cancer
2-Exposure to toxic chemicals
3-Guillain-Barré syndrome (autoimmune nerve disorder)
4-Hypothyroidism (underactive thyroid)
5-Ischemia (insufficient flow of blood to the lips)
6-Lyme disease (bacterial infection spread by tick bites)
7-Multiple sclerosis (disease that affects the brain and spinal cord causing weakness, coordination, balance difficulties, and other problems)
Serious or life-threatening causes of numb lips
In some cases, numb lips may be a symptom of a serious or life-threatening condition that should be immediately evaluated in an emergency setting. These include:
Anaphylaxis (life-threatening allergic reaction),Hyperventilation,Toxic ingestion, such as eating poisonous plants mushrooms or chemicals
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It is recommended that all individuals see a Family Doctor for a full medical examination annually. Adults should get their blood pressure checked (US Preventive Task Force), a flu vaccine (CDC) and more each year.
The American Dental Association recommends dental cleanings for adults at least twice annually. Some stains can only be removed by a professional cleaning.
It’s recommended by the American Academy of Ophthalmology that every adult between the ages of 18 and 80 does an eye examination at least once every two years.
It's recommended by the American Cancer Association that every adult between the age of 20 and 80 does an annual skin screening by a licensed dermatologist.
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