What Grade Is Your Facial Palsy Recovery? The House-Brackmann Self-Assessment Guide + Grade-by-Grade Training Plan

Keywords: House-Brackmann scale, facial palsy grading, Bell's palsy recovery stages, facial paralysis self assessment, synkinesis training

The most tormenting part of Bell's palsy isn't the drooping itself — it's the question "How far along am I? How much longer?" Every mirror check is a guess, and even doctors often say "let's keep observing."

Medicine actually has a standardized ruler: the House-Brackmann (HB) facial nerve grading scale — the six-level system used by facial nerve surgeons and rehab clinicians worldwide. Every follow-up visit, every chart note, runs on it.

This article unpacks the full scale: what each grade looks like, what recovery stage it corresponds to, and what to train at each level. By the end you can grade yourself — and know exactly what stands between your current grade and the next one.

1. The HB Scale: Grade I (normal) to Grade VI (total paralysis)

Grade	Name	At rest	In motion	Key tell
I	Normal	Symmetric	All expressions normal	No abnormality
II	Mild dysfunction	Symmetric	Slight weakness; complete eye closure with effort; good forehead motion; mild mouth asymmetry when smiling	Invisible at rest, shows only in motion
III	Moderate dysfunction	Symmetric	Obvious but not disfiguring weakness; complete eye closure with effort; forehead motion present; visible synkinesis	"Obvious, but appearance intact"
IV	Moderately severe	Symmetric	Obvious, disfiguring asymmetry; incomplete eye closure; no forehead motion; marked synkinesis/spasm	The watershed: eye won't fully close
V	Severe	Asymmetric	Barely perceptible motion; incomplete eye closure; slight mouth movement	Only flickers of movement
VI	Total paralysis	Asymmetric	No movement at all	Typical acute-phase state

Three quick rules for non-clinicians:

1. Watch the eye: complete closure with effort = Grade II-III; incomplete = Grade IV or worse. Eyelid closure is the watershed
2. Watch the forehead: visible brow raise = Grade III or better; frozen forehead = Grade IV or worse
3. Watch the resting face: still symmetric at rest = Grade III at worst; already crooked at rest = Grade V-VI

2. What your grade means: probabilities and timelines

Matching grades to clinical data removes most of the dread (sources: multiple facial nerve research reviews):

• 70-85% of Bell's palsy patients recover completely (back to HB I-II), most within 3-6 months of onset
• Visible recovery within 2-3 weeks of onset is the strongest good sign — the earlier recovery starts, the lower the risk of permanent sequelae
• A 2025 study in the European Archives of Oto-Rhino-Laryngology confirms the first year is the critical window for meaningful nerve regeneration; recovery beyond 12 months is exceptional — systematic training in that first year isn't optional, it IS the window
• Ramsay Hunt syndrome (shingles virus, ~12% of peripheral facial palsy cases) has a worse prognosis than Bell's: complete recovery under 50%, making early systematic rehab even more critical

The real purpose of grading isn't labeling — it's "locate → act." Grade VI and Grade II need completely different training; the wrong stage's exercises don't just fail, they can train synkinesis into permanence.

3. Grade-by-grade training strategy

Grade VI / V (acute phase: no or minimal movement)

The goal is not "work the muscles" — it's protect function and wait for the nerve.

• Eye protection is priority one: incomplete closure means corneal exposure risk. Preservative-free artificial tears every 1-2 hours by day; ointment + taping/moisture chamber at night; windproof glasses outside
• Gentle massage and passive movement (help the eye close, help the brow lift with your fingers) to maintain muscle elasticity and proprioception
• Do NOT strain or "squeeze" expressions — the nerve isn't connected yet; forcing it trains wrong patterns
• Start recording: photos (resting, eye closure, brow raise, smile, cheek puff). This baseline is your most valuable asset for the months ahead

Grade IV (the watershed: movement returns, eye won't close)

Goal: rebuild correct, ISOLATED motor control.

• Neuromuscular retraining (NMR) principles: small amplitude, slow speed, in front of a mirror, one muscle group at a time — raise the brow without pulling the eye; close the eye without pulling the mouth corner
• Quality over quantity: 10 clean brow raises > 50 that drag everything along
• This is the high-risk window for synkinesis: if closing the eye twitches your mouth, immediately drop the amplitude back to the smallest range you can isolate
• Keep photographing daily

Grade III → II (fine coordination)

Weakness is obvious but appearance is intact; now symmetry and precision decide everything:

• Smile symmetry training: assist the affected mouth corner with a finger while smiling into a mirror, hunting for "both sides equal height"
• Lip isolation: pucker and spread practiced separately so they stop co-firing
• Graded effort: perform the same expression at 30%, 50%, 70% force — fine control is the hallmark of Grade II
• Synkinesis control: independent brow-eye and eye-mouth drills (any linkage = drop back one amplitude level)

Grade II → I (the final stretch)

Only subtle asymmetry remains; training shifts to natural expression and endurance:

• Embed in daily life: talking, laughing, eating — consciously keep the affected side participating
• Fatigue management: poor facial endurance is why Grade II patients are "fine in the morning, crooked by evening." Small frequent sessions beat one big grind
• Keep monitoring for synkinesis — it often reveals itself late in recovery

4. How to run a standardized self-assessment at home

Clinicians grade HB by trained eyeball. At home, you can approximate it with standard expressions + imaging:

1. Fix 9 standard movements: resting face, brow raise, gentle eye closure, forced eye closure, nose wrinkle, closed-lip smile, cheek puff, pucker, teeth show — covering every muscle group HB examines
2. Fix conditions: same light, same distance, front camera, same weekday
3. Compare longitudinally: weekly progress is invisible day-to-day, but week 1 next to week 8 is unmistakable
4. Grade each session: use the three quick rules above (eye/forehead/resting), log the result

Doing this manually is tedious — which is exactly why we productized it in Face Recovery Journal:

• The iPhone TrueDepth camera (the Face ID one) records the 9 standard expressions and generates a symmetry assessment report — a layer of depth information beyond ordinary selfies
• Training plans generated from your grade and stage: eye protection, smile coordination, synkinesis control — each with real-time camera feedback and rep tracking
• Log feeling, synkinesis level and notes per session; recovery curves visualized weekly and monthly
• Exportable assessment reports to show your clinician at follow-ups
• English & Simplified Chinese; free tier + Pro unlocks full plans

📲 Face Recovery Journal — App Store

This app does not provide medical diagnosis. Assessment results are for reference only. Always follow the guidance of your healthcare provider.

Closing: replace guessing with a scale

What wears facial palsy patients down is the daily mirror ritual of "maybe slightly better, maybe not." The HB scale doesn't give you a cure — it gives you graduations: where you are, what the next grade looks like, and what this step requires.

Recovery with a scale is the only kind that survives months.

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FAQ

Q: How does HB differ from the Sunnybrook score? A: HB is a coarse six-level scale (the clinical standard); Sunnybrook is a finer quantitative score (resting symmetry + voluntary movement + synkinesis). Studies show both respond sensitively after 3 months of treatment. For home self-assessment, HB is sufficient.

Q: I have Ramsay Hunt syndrome — does this scale apply? A: Yes, but adjust expectations and patience: RHS complete recovery is under 50% with higher sequelae rates. Systematic rehab after early high-dose antivirals + steroids matters even more — always under medical supervision.

Q: My onset was over a year ago. Is training pointless now? A: The nerve regeneration window is the first year; spontaneous recovery beyond 12 months is exceptional. That doesn't mean nothing can be done — managing established synkinesis and sequelae (botulinum toxin, surgery, synkinesis control training) can still significantly improve quality of life. Get a facial nerve specialist's assessment first.

Q: How often should I self-assess? A: Every 3 days during the acute phase (first 4 weeks), then weekly under fixed conditions. More often = invisible changes and more anxiety; less often = missed inflection points.