Symptoms Of Progressive Bulbar Palsy

Jaw Weakness

Jaw weakness is another symptom of progressive bulbar palsy. The jaw has many functions, including assisting with the chewing and processing of food, speech, and facial movements. When there is a significant weakness of the jaw muscles, a patient may be rendered unable to chew, talk, or swallow. Signs of weakness in the jaw include the inability to fully close the mouth; slackness in the muscles, resulting in the face appearing lopsided at the jaw; fatigue when chewing food or speaking; and limited facial expressions. Jaw weakness is typically progressive, and in some cases, the muscles in the jaw become completely atrophied and unable to be used. Patients may be referred to a speech therapist to work on jaw exercises to slow the progression of the disease. As progressive bulbar palsy advances and the atrophy becomes increased, patients may need to change their diet to soft or liquid foods. If the weakness advances to such a state in which the jaw can no longer function for eating, a feeding tube may need to be inserted to assist with proper nutrition.