Robert F. Kennedy Jr. has a scratchy, raspy voice because he has a rare neurological voice disorder called spasmodic dysphonia , which causes involuntary spasms in the muscles that control the vocal cords and makes speech sound strained, shaky, or “choked.”

Why does Kennedy have a scratchy voice?

The basic reason

  • Robert F. Kennedy Jr.’s distinctive scratchy, quivering voice is not from a cold or simple hoarseness but from spasmodic dysphonia, a focal dystonia that specifically affects the larynx (voice box).
  • In this condition, the muscles that open and close the vocal cords spasm when he talks, making his voice sound tight, broken, and raspy, especially at the start of sentences.

What is spasmodic dysphonia?

  • Spasmodic dysphonia is a chronic neurological disorder where the brain sends abnormal signals to the muscles that move the vocal cords, triggering spasms during speech.
  • It typically does not affect laughing or coughing, which is why someone can sound much more “normal” when laughing but strained when speaking.

There are main types:

  • Adductor type (the type Kennedy has): the vocal folds press too tightly together, creating a strangled, creaky, or rough voice with breaks.
  • Abductor type: the vocal cords spasm open, causing a breathy, weak voice instead of a tight, strained one.

How long has he had it?

  • Kennedy has said his voice began changing in his early-to-mid 40s and that he was later formally diagnosed with spasmodic dysphonia.
  • He has described getting letters and messages from viewers suggesting the diagnosis before doctors confirmed it, and he notes that his voice has sounded this way for decades now.

Does it hurt or affect his health?

  • Spasmodic dysphonia affects sound, not overall lung or heart health; it is about how the voice comes out, not whether he can breathe or speak at all.
  • Kennedy has said his voice does not really “get tired,” but it “just sounds terrible,” and that the problem is neurological rather than damage to the vocal cords themselves.

Can it be treated or improved?

  • The most common treatment is periodic Botox injections into specific voice muscles; these reduce spasms so the voice can sound smoother for a while, but the effect wears off and must be repeated.
  • Voice therapy with a speech-language pathologist can sometimes help people learn strategies to make their voice a bit easier to understand, but it does not “cure” the underlying condition.

Other possible causes of a scratchy voice (in general)

If someone else (not RFK Jr.) has a scratchy or hoarse voice, common causes include:

  • Acid reflux: stomach acid irritating the larynx can inflame and scar the vocal cords, making the voice hoarse.
  • Allergies: swelling and mucus from allergic reactions, plus drying from antihistamines, can produce a raspy sound.
  • Overuse or infection: shouting, singing loudly, or a respiratory infection can temporarily roughen the voice.

But in Kennedy’s case, the main confirmed reason is spasmodic dysphonia, a chronic neurological voice disorder rather than a simple throat problem.

Information gathered from public forums or data available on the internet and portrayed here.