Somewhere tonight, a haunted house performer will scream more than a hundred times before the last group walks through. Across town, a voice actor is in a booth recording death screams and battle efforts for a video game, take after take. Both are doing some of the most demanding vocal work there is.
Scare actors, theme park and immersive theater performers, and voice actors who record screams are high-impact voice users. For the former, October is their peak season, and it comes with a specific injury worth understanding before the busiest weekends arrive: vocal fold hemorrhage.
What happens to my voice when I scream?
A scream drives the vocal folds together with far more force and speed than speech or most singing. Each impact sends shear stress through the soft outer layer of the fold, where tiny blood vessels sit just beneath the surface. These vessels may dilate and stay enlarged once formed, called a varix.
Vocal fold hemorrhage happens when one of those vessels ruptures and blood leaks into that outer layer. The blood stiffens the tissue, so the fold can no longer vibrate freely. Voice use then requires pushing, which increases the risk of permanent injury. This is an acute phonotraumatic injury, meaning it is sudden caused by voice use, and the standard first treatment is voice rest.¹
What are symptoms of a vocal hemorrhage?
hoarseness/texture in the voice
loss of the upper range
voice feels stuck or will not respond the way it did on previous effort
Why Haunt Season Stacks the Odds
One scream is less likely to cause a hemorrhage. But voice actors and actors on set filming or live in a haunted house scream repetitively. The vocal folds swell over repeat screams, making hemorrhage more likely with each effort.
Additionally, fatigue changes how screams are produced. As the body tires, support may weaken with the actor relying more on throat/voice muscles and squeeze. Late nights cut into the recovery time. Performers often work between screams, giving directions to guests or talking over loud soundtracks, so the shift is densely packed with voice use.
Fog and haze machines, standard in haunts, dry and irritate the airway. Dry vocal fold tissue is less resilient under impact and the fog swells the vocal folds when inhaled.
The Warning Sign You Should Never Push Through
Most screamers know end-of-night fatigue: the voice feels heavy and a little rough, then recovers after sleep.
The warning sign is a sudden change in the middle of a scream. The voice cuts out, drops, turns breathy or gravelly, or loses its top, and it does not come back after a minute or two. Some performers describe it as a pop or a catch. Others notice only that the next scream will not land.
When that happens, stop screaming for the rest of the shift. Do not test the voice repeatedly to see if it has returned, and do not push through to finish the night. Book a laryngologist visit as soon as possible, ideally within 1-2 days. A hemorrhage, a swelling and a simple strain can feel similar from the inside. Only a stroboscopy can tell them apart.
We covered why pushing through is so costly in Why You Shouldn't Push Through Hoarseness During the Holidays.
Screaming More Efficiently
A safer scream is not a quieter scream. It is a more efficient one, built on three habits.
How can I scream safely?
Support. Power should come from breath and the body, not from squeezing the throat. This should be trained working with a voice therapist. A scope may be used to identify how you're screaming and watch if that improves with coaching.
Placement. Use the resonance of the mouth and face to amplify so the vocal folds do not have to supply all of the volume. Where a scene is mic'd or has sound design behind it, let the system carry some of the load.
Variety. Not every moment needs a full-voice scream. Mixing in physical startles, lower-intensity vocal effects and silence protects the voice over a long shift, and it often makes the big screams land harder. Offstage, speak at a comfortable level, sip water and step out of the haze when you can.
Voice actors can apply the same thinking to session planning. Schedule screams mindfully during a session (some voice do better at the beginning, some scattered throughout a session and some at the end). Space heavy effort days apart, and say so when a director asks for one more take on a voice that is already fading. Case Study #1 follows a young voice actor whose voice gave out during performance, and what recovery looked like.
The Long-Term Outlook Is Good, With One Caveat
A study of 41 patients followed for a median of 41 months found their voice function and self-rated voice handicap were similar to comparable patients who never had a hemorrhage. Rates of career change were also similar, 7.3% versus 8.0%. The main difference was more missed work days, a reminder that the real cost of a hemorrhage is the downtime.²
The caveat is recurrence. In a review of 47 hemorrhages, about 26% recurred. Only one factor significantly predicted a repeat: a varix, an enlarged and fragile blood vessel on the vocal fold. Among patients with a varix, 48% had another hemorrhage.¹
A varix cannot be felt or heard. It is visible only on a laryngeal exam, which is why proper follow-up matters even after the voice feels normal again. Depending on what the exam shows, management may include monitoring, adjustments to voice use, or in some cases a procedure to treat the vessel.¹
References
C. J. Lennon, T. Murry, and L. Sulica, "Vocal Fold Hemorrhage: Factors Predicting Recurrence," The Laryngoscope 124, no. 1 (2014): 227-232.
L. J. Kerwin, C. Estes, C. Oromendia, P. Christos, and L. Sulica, "Long-Term Consequences of Vocal Fold Hemorrhage," The Laryngoscope 127, no. 4 (2017): 900-906.
