Facial Droop

Overview

Facial droop means one side of the face sags or does not move the way it usually does. The mouth may pull to one side, one eyelid may not close fully, or the smile may look uneven. Facial droop is not a condition in itself — it is a sign. The most serious possible cause is a stroke, where blood flow to part of the brain is blocked or bleeding. Other causes include Bell's palsy (a temporary weakness of the nerve that moves the face), infections, migraines and some other nerve problems. Because a stroke is a medical emergency, any sudden facial droop should be treated as an emergency until a healthcare professional says otherwise.

Facial droop is a common reason people seek urgent medical help. Stroke is a leading cause of disability worldwide, and Bell's palsy affects tens of thousands of people each year in the UK alone. Because the causes vary so much, any new facial droop needs to be checked quickly.

Anyone can develop facial droop, at any age. Stroke is more common in older adults and in people with high blood pressure, diabetes, high cholesterol, an irregular heartbeat or a smoking habit. Bell's palsy can affect people of any age, most often between 15 and 60. Some causes, such as certain infections, are more common in children.

Symptoms

Common symptoms

• One side of the face sagging or looking flat
• The smile looking uneven or pulling to one side
• One eyelid not closing properly, or the eye feeling dry and irritated
• Drooling, or food and drink leaking from one side of the mouth
• Slurred or unclear speech, or trouble finding words (this points strongly to stroke)
• Weakness or numbness in an arm or leg on one side
• Sudden dizziness, loss of balance or trouble walking
• Sudden confusion or trouble seeing out of one or both eyes
• A sudden, very severe headache
• Change in taste, or sounds seeming unusually loud (more typical of Bell's palsy)

Symptoms in children

• A lopsided smile, or one side of the face not moving when the child laughs or cries
• Drooling more than usual, or milk or food leaking from the mouth
• An eye that stays open during sleep on one side
• In babies, feeding difficulties or a weaker suck
• Possible ear pain or a recent viral illness before the weakness started
• Any sudden weakness in children is still an emergency — do not wait to see if it improves

Symptoms in older adults

• Facial droop together with confusion, falls or a sudden change in speech is a stroke until proven otherwise
• Weakness that comes and goes (sometimes called a mini-stroke or TIA) — this is also an emergency
• Symptoms that may be mistaken for tiredness, a 'droopy eye' or dental problems
• A higher chance of stroke risk factors such as high blood pressure, diabetes and irregular heartbeat
• Some medicines and long-term conditions can affect the facial nerve, so a medicine review with a doctor or pharmacist can help

Causes

Main causes

• Stroke — a blocked or burst blood vessel in the brain; this is the most serious cause and needs emergency care
• Bell's palsy — temporary weakness of the facial nerve, thought to be linked to a viral infection; the most common non-emergency cause
• Ramsay Hunt syndrome — shingles affecting the facial nerve, usually with a blistery rash near the ear
• Infections such as Lyme disease or middle-ear infection
• Migraine, which can sometimes cause temporary facial weakness
• Head injury or injury to the facial nerve
• A growth or swelling pressing on the nerve
• Conditions affecting the muscles, such as myasthenia gravis, or other nerve conditions
• In rare cases, a problem in the brain such as a bleed, tumour or inflammation

Risk factors

• High blood pressure
• Diabetes
• High cholesterol
• Smoking or vaping
• Drinking too much alcohol
• An irregular heartbeat such as atrial fibrillation
• Being overweight or not being physically active
• A recent viral infection or a weakened immune system
• Pregnancy (Bell's palsy is slightly more common in late pregnancy)
• Family history of Bell's palsy
• Being outside in cold, windy weather for long periods (a weak link, and not a proven cause)
• Age — stroke risk rises with age

When to see a doctor

See a doctor urgently if:

• Any new facial droop — call your local emergency number rather than waiting for an appointment
• Facial droop with speech changes, arm or leg weakness, confusion, vision changes or severe headache
• An eye that will not close and is becoming red, painful or blurry
• Facial weakness with blisters, rash, fever, ear pain or ear discharge
• Facial droop that has lasted more than a few minutes, even if it seems to be improving

Book a routine appointment if:

• Weakness you have had for a while that is not changing, to get it checked and discussed
• Ongoing problems with eating, speaking, or closing your eye after a diagnosis
• Concerns about your stroke risk, such as blood pressure or cholesterol checks
• Emotional or practical difficulties after facial weakness, including confidence at work or in social situations

Diagnosis

A healthcare professional will start by asking what happened and when, then look at your face while you smile, raise your eyebrows, close your eyes tightly and puff out your cheeks. They will check your speech, strength, balance and vision, and look in your eyes, ears and mouth. In an emergency, the first goal is to rule out a stroke quickly, using a simple checklist often remembered as FAST — Face, Arms, Speech, Time. If stroke is possible, you will usually be sent straight to hospital for scans.

Tests that may be done

• A physical and neurological examination, including checking how the face moves on each side
• Blood pressure, pulse, oxygen level and blood sugar checks
• Blood tests to look for infection, diabetes and cholesterol
• A CT or MRI scan of the head, which shows bleeding, blockage or other problems in the brain
• An electrical nerve test, sometimes used if the cause is unclear or recovery is slow
• Hearing tests or ear checks if an ear problem is suspected
• Tests for specific infections, such as Lyme disease, if there is a reason to suspect them

What to expect at your appointment

In an emergency, things move quickly. You may be seen by several people, asked the same questions more than once, and taken for a scan. Try to bring a list of your medicines, and if possible have someone with you who saw what happened and when. If stroke is ruled out and the cause looks like Bell's palsy, you may be given eye care advice, a follow-up appointment, and information about what to expect. Some tests take a few days to come back.

Treatment

Treatment depends entirely on the cause. A stroke needs emergency hospital treatment to restore blood flow and prevent further damage. Bell's palsy is usually managed with eye protection, sometimes a short course of steroid tablets prescribed by a clinician, and time. Infections are treated according to their cause. Whatever the reason, protecting the eye and getting the right support early makes a real difference.

Self-care at home

• Protect the eye that will not close: use lubricating eye drops or ointment as advised by your pharmacist or clinician, and consider a simple eye patch or tape at night
• Wear sunglasses outdoors to reduce glare and wind irritation
• Avoid very hot drinks and take small, slow sips until swallowing is checked
• Chew on the unaffected side and eat softer foods if mealtimes are tricky
• Gently massage the face and practise facial movements such as smiling, puffing cheeks and closing eyes — ask about a referral to a facial therapy specialist
• Take breaks when speaking, and use written notes if words are hard
• Keep taking any regular medicines for blood pressure or heart conditions as prescribed
• Ask for help with daily tasks while you recover rather than pushing through

Medical treatments

Treatment is aimed at the cause. For stroke, hospital teams may use treatments that break up blood clots, or a procedure to remove a clot from a blood vessel in the brain, but only within certain time limits and only for some people. Hospital care also focuses on swallowing safety, blood pressure, blood sugar and preventing complications. For Bell's palsy, a clinician may prescribe a short course of steroid tablets, started as early as possible, and sometimes an antiviral medicine. Eye protection is essential in all cases. For infections, treatment is directed at the infection. Physiotherapy, speech and language therapy, and occupational therapy are important parts of recovery, and a clinician may also discuss vitamin supplements or other supportive measures. Always ask your own healthcare professional what applies to you — never start or stop a medicine on your own.

When is surgery considered?

Surgery is not needed for most causes of facial droop. It may be considered for a stroke caused by a clot in certain large blood vessels, where a specialist team removes the clot. Rarely, surgery is used to relieve pressure on the facial nerve, or later on to help the eyelid close or improve symmetry after a long-standing weakness. A blocked artery in the neck may need a procedure to reduce the risk of another stroke. These decisions are made by specialist teams and depend on many individual factors.

Living with this condition

Facial weakness can make everyday things — eating, drinking, brushing teeth, shaving, speaking and showing emotion — feel awkward at first. Most people find practical workarounds quickly: a straw, a softer diet, a mirror by the sink, and telling people at work or school what is going on. Keep protecting the eye until it closes fully, and keep practising gentle facial movements without straining. Recovery is usually gradual. Notice small improvements week by week rather than day by day.

Lifestyle tips

• Keep taking medicines for blood pressure, cholesterol or heart rhythm exactly as prescribed
• Stay physically active within what feels comfortable, and build up slowly
• Do not smoke, and keep alcohol within recommended limits
• Aim for regular sleep and manage stress where you can
• Keep up with routine health checks, including blood pressure
• Ask your pharmacist before taking any new over-the-counter medicine or supplement

Diet and exercise

Eat regular balanced meals, and choose softer textures if chewing is tiring. Limit very salty and highly processed foods, which can raise blood pressure. Aim for fruit, vegetables, wholegrains, beans, fish and lean protein, and drink enough water. Once you are medically stable, gentle activity such as walking, stretching or seated exercise helps circulation and mood. A physiotherapist or your doctor can advise on a safe starting point, especially after a stroke.

Mental health and emotional wellbeing

It is very normal to feel shocked, worried or low when your face does not work as it used to. Many people feel self-conscious about their appearance and anxious about social situations. These feelings usually ease as recovery happens, but they deserve attention. Talking to a GP, a counsellor or a stroke or facial palsy support service can help a great deal. If you ever have thoughts of harming yourself, please reach out to a crisis support service or your local emergency number straight away — you deserve immediate help and you are not alone.

Prevention

Some causes of facial droop can be made less likely, and others cannot be predicted. The most powerful steps are the ones that lower stroke risk: getting blood pressure and cholesterol checked and treated, keeping blood sugar in range if you have diabetes, staying active, not smoking, and keeping alcohol within limits. Bell's palsy cannot usually be prevented, and it is not caused by anything you did. Getting help fast does not prevent droop itself, but it greatly improves the chances of a good outcome.

Vaccines

There is no vaccine for facial droop itself. Some infections that can affect nerves, such as shingles, can be reduced by vaccines that your local health service may offer for your age group or health situation. Ask your GP or pharmacist which routine vaccinations are recommended for you.

Screening programmes

Routine NHS checks, such as the NHS Health Check for adults in England, include blood pressure and cholesterol measurements and can spot stroke risk factors early. If you have an irregular heartbeat, diabetes or a family history of early stroke, ask your GP whether extra checks are appropriate. Regular blood pressure checks are one of the simplest ways to protect your future health.

Complications

If left untreated

• Stroke treatment given too late can lead to lasting weakness, speech problems or disability
• Eye damage, including scratches on the surface of the eye, infections and in rare cases permanent vision loss, if the eye is not protected
• Eating and drinking problems that can lead to choking or chest infections
• Long-term facial asymmetry, tightness or unwanted movements
• Low mood, anxiety and social withdrawal
• Higher risk of a further stroke if risk factors are not addressed

Long-term outlook

The outlook depends on the cause. Most people with Bell's palsy notice improvement within a few weeks and recover well, though some take several months and a small number have lasting weakness. After a stroke, recovery varies widely, and many people regain a great deal of function with therapy, support and time. Getting help immediately, protecting your eye, keeping up with therapy and managing risk factors give you the best possible chance. Speak with your healthcare team about what to expect in your own situation.

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