Guide To Primary Lateral Sclerosis Symptoms

Hoarse Voice

A hoarse voice is another common symptom of PLS and may get worse as the muscles in the face and throat become weaker. Hoarse voices are also seen in patients with ALS, so this symptom may be a contributing factor to misdiagnosis of primary lateral sclerosis. Voices are caused by vibration through the vocal cords. When not speaking, the folds open to allow breathing. As individuals speak, the vocal cords come together, and air blows past them, causing a vibration. Hoarseness may occur because of the brain's signals to the vocal cords becoming weaker as the nerves degenerate. Experts recommend seeing a doctor if one's voice has been hoarse for over three weeks. In most cases, hoarseness alone isn't a sign of a neurological problem like PLS, but it can indicate an infection or virus. It's also important for individuals to talk to a doctor if they've lost their voice entirely for more than a couple days.

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