
Facial numbness can be caused by various factors, including stress, anxiety, and physical injury. When an individual is stressed, their facial muscles can remain contracted or partially contracted, leading to discomfort and tension headaches. This tension can also be a symptom of anxiety, which may cause lip damage from biting or chewing and mouth breathing, drying out the lips. Nerve damage or irritation can also cause facial numbness, as the nerves in the face control sensations and movement. This can occur due to dental surgery, injury, sleeping in an odd position, or underlying health conditions such as multiple sclerosis (MS), shingles, or Bell's palsy. Additionally, facial numbness can be a symptom of more serious conditions like a stroke, requiring immediate medical attention.
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What You'll Learn

Muscle tension and anxiety
Muscle tension is a psychophysiological phenomenon that has both subjective and objective components. It is often regarded as the most distinctive somatic symptom of generalized anxiety disorder (GAD) compared to other anxiety disorders. Muscle tension is a natural response to emotional or physical stress, which can be caused by anxiety. When a person is stressed, their body releases hormones that activate their sympathetic nervous system, causing their muscles to contract.
Anxiety-induced muscle tension can affect any muscle or group of muscles in the body and can shift from one area to another. It can be experienced as muscle spasms, twitching, "clamping up", and intermittent pain. The degree and intensity of anxiety muscle tension symptoms vary from person to person. While some may only experience slight discomfort, others may find the pain restricting and debilitating, even becoming bedridden. Muscle tension stemming from anxiety can also persist when trying to relax or fall asleep.
Those with panic disorder, hypochondria, and other anxiety disorders may become "hypersensitive" to the way their body feels, noticing every ache, pain, and itch. Muscle tension can become worse if the person experiences anxiety, and the worse the anxiety, the worse the muscle tension and pain can become, creating a vicious cycle.
There are several ways to help muscles relax and gain relief from tension. A hot shower or bath can be soothing to tense muscles, and a massage can help release muscle tension by pushing on the knots that cause tension and discomfort. Biofeedback training uses devices to monitor muscle tension, heart rate, and blood pressure to help individuals learn to control their body's responses. Additionally, cognitive-behavioral therapy (CBT) is a goal-oriented talk therapy that teaches individuals practical stress management techniques. Anti-anxiety medication may also be prescribed by a doctor to be used in conjunction with these techniques.
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Facial nerve damage
Stress and Facial Tension
Facial tension is a natural response to emotional or physical stress. When stressed, it is common to tighten facial and jaw muscles or clench teeth, which can lead to chronic pain, such as temporomandibular joint disorder (TMJ). Prolonged stress can cause facial muscles to remain contracted or partially contracted, resulting in discomfort. Stress can also trigger tension headaches, the most common type of headache, which can be managed through stress reduction techniques, facial exercises, and biofeedback training.
Facial Nerve Disorders
Facial nerve disorders, such as Bell's palsy and Lyme disease, can lead to facial paralysis or weakness. Bell's palsy, for example, causes temporary paralysis or weakness in the face, often on one side, and can result in numbness or tingling. In such cases, tests like electromyography (EMG) and CT or MRI scans may be performed to assess muscle electrical activity and identify potential causes of nerve damage, such as fractures, infections, or tumours.
Facial Nerve Injury
There are three types of facial nerve injuries: first degree, second degree, and third degree. A first-degree injury involves mild and brief pressure on the facial nerve, allowing for a full recovery within approximately 4 to 6 weeks. In contrast, a third-degree injury involves severe damage to the facial nerve, resulting in much slower and incomplete recovery. If the nerve is cut or severed, typically during an operation near the nerve site, surgical repair is required as the nerve cannot recover on its own.
Medical Conditions
Medical conditions like strokes, brain aneurysms, and multiple sclerosis (MS) can also cause facial nerve damage and numbness. For example, a stroke can lead to symptoms such as drooping, weakness, and numbness on one or both sides of the face. Similarly, a brain aneurysm can press on brain tissues and nerves, causing numbness on one side of the face. Numbness is one of the first and most common signs of MS, as the body's immune system attacks the layer protecting nerve fibres.
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Stroke symptoms
While muscle tension can cause facial numbness , it is important to be aware of other possible causes, especially those that require immediate medical attention, such as a
F.A.S.T.
The American Stroke Association recommends learning the acronym "F.A.S.T." to help you act fast and recognize the warning signs of a stroke:
- Face: Ask the person if they can smile. Does one side of their face droop?
- Arms: Tell them to raise both arms. Does one arm drift downward?
- Speech: Ask them to repeat a simple phrase. Is their speech slurred or strange?
- Time: If you observe any of these signs, call the emergency services right away. Note the time when any symptoms first appear. This information is crucial for healthcare providers to determine the best treatment.
Other stroke symptoms
- Drooping on one side of the face
- Weakness in the arm
- Speech difficulty
- Problems seeing out of one or both eyes
- Balance or coordination problems
- Weakness or paralysis on one side of the body
- Numbness in the face, arm, or leg
Please note that stroke is a life-threatening condition that requires immediate medical attention. Even if the symptoms go away, you should still seek medical help as it could be a transient ischemic attack (TIA) or "mini-stroke," which is a sign of an underlying serious condition.
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Allergic reactions
While muscle tension in the face can lead to discomfort, it is not directly mentioned as a cause of facial numbness. However, facial numbness can be caused by an allergic reaction, which can also be linked to stress and anxiety.
Facial numbness can also be a symptom of other underlying health conditions, such as Bell's palsy, migraine, multiple sclerosis, stroke, or shingles. Bell's palsy causes temporary facial paralysis or weakness, typically on one side of the face, and can lead to numbness or tingling. Migraines, which are characterised by severe headaches, can also cause facial numbness during an episode. Multiple sclerosis (MS) often presents with facial numbness as an early symptom, along with diminished sensation in the limbs and trunk.
Additionally, a stroke can cause abrupt facial numbness, along with other symptoms like weakness in the face, arms, or legs, confusion, and difficulty speaking. Shingles, a viral infection, can trigger a painful rash on one side of the face or body, resulting in facial numbness.
It is important to note that facial numbness can be a sign of various medical conditions, some of which may be serious. Therefore, if you are experiencing facial numbness, it is advisable to seek medical attention to ensure proper diagnosis and treatment.
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Tumours and aneurysms
While muscle tension is not directly mentioned as a cause of facial numbness, it is important to note that stress and anxiety can lead to facial tension and discomfort. This can include tightening of the facial and jaw muscles, as well as clenching of the teeth. Facial tension is a natural response to prolonged emotional or physical stress.
Now, turning to the topic of tumours and aneurysms:
On the other hand, an aneurysm is a weak spot or bulging area in the wall of a brain artery. Aneurysms often go undetected until they rupture and cause bleeding in the brain. As the aneurysm grows, it can press on brain tissues and nerves, resulting in numbness on one side of the face. Other symptoms may include pain in one eye, double vision, and severe headaches. Both tumours and aneurysms that lead to facial numbness are considered serious medical conditions that require prompt medical attention.
While muscle tension itself may not be the direct cause of facial numbness, it is important to address stress and anxiety that can contribute to overall physical tension and discomfort, including in the face. Additionally, it is crucial to be vigilant about potential signs of more serious underlying conditions, such as tumours or aneurysms, which can have facial numbness as one of their symptoms.
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Frequently asked questions
Facial numbness can be caused by various factors, including stress, panic attacks, anxiety, and physical tension. It can also be a symptom of more serious conditions such as a stroke, migraine, allergies, Bell's palsy, multiple sclerosis, or shingles.
Facial numbness due to muscle tension is often accompanied by other symptoms such as tingling, trembling, or physical tension in the neck and shoulders. It is important to note that facial numbness can be a sign of more serious underlying conditions, so seeking medical advice is recommended to rule out any potential causes for concern.
There are several techniques to relieve muscle tension, including facial exercises, biofeedback training, and stress management techniques such as CBT (Cognitive Behavioral Therapy). If the tension is due to stress, anxiety, or panic attacks, anti-anxiety medication may be prescribed alongside stress management techniques.











































