Injury or damage to a nerve.
There are also a few other causes of numbness in face. Numbness (hypesthesia or hypoesthesia)refers to the lack of skin sensations (either partial or complete) over a part of body. Numbness usually signifies nerve dysfunction but can occur in certain defects in the central nervous system (brain and spinal cord). Neuropathy or nerve damage can be due to a number of specific diseases and disorders. In many cases, neuropathy has no known cause. In rare cases, if the numb face is accompanied by numbness or weakness of the arms or legs on one side of the body, it can be a sign of stroke. Research the causes of these related symptoms that are similar to, or related to, the symptom Facial numbness: 1  Numb skin. 2  Numb lips (25 causes). 3  Tingling face (18 causes). 4  Tingling lips (24 causes). 5  Numb cheeks. 6  Blue face. 7  Tingling skin (53 causes). There are several possible causes of facial numbness, also known as hypesthesia. Most of these causes can be traced to a problem in or affecting the trigeminal nerve. It is one of twelve cranial nerves and is one of the most widely distributed nerves in the head. In summary, the causes of facial numbness can be quite large in number, yet the condition is not all that common. In most all instances, only one side of the face or a part of one side of the face will be involved. These symptoms can be transitory, long-lasting, or repetitive. Causes. Numbness is usually caused by damage, irritation or compression of several nerves or a single branch of a nerve, most often situated in the periphery of your body. Diseases affecting the peripheral nerves, such as diabetes, also can cause numbness. Rarely, numbness can be caused by problems in your brain or spinal cord. One leading cause of face numbness is injury or damage to a nerve. According to the Mayo Clinic, Bell's palsy is a paralysis of the facial nerve. This weakening can be sudden, or occur over the course of a couple days. Dysfunction of the facial nerve (as in Bell's Palsy) will usually not cause numbness as it carries innervations for the muscles of the face and not sensations from the skin. The table given below lists the various important causes of numbness in face.
http://www.md-health.com/Numbness-In-Face.html http://www.healthgrades.com/symptoms/numb-face http://www.rightdiagnosis.com/symptom/facial-numbness.htm http://facialhealth.org/causes-of-numbness-in-face/ http://facialhealth.org/causes-of-numbness-in-face/ http://www.mayoclinic.org/symptoms/numbness/basics/causes/sym-20050938 http://www.livestrong.com/article/133474-causes-face-numbness/ http://www.md-health.com/Numbness-In-Face.html
causes of facial numbness