15 Warning Signs Of Cerebellar Degeneration

7. Intention Tremor

An intention tremor appears during purposeful movement—such as reaching for a glass—and worsens as the hand approaches its target. Unlike resting tremor, which occurs at rest, intention tremor reflects cerebellar damage disrupting the smooth coordination of agonist and antagonist muscles. Patients may overshoot or undershoot intended movements, making everyday tasks like pouring tea or buttoning a shirt challenging. No cure exists, but physical therapy can improve motor control, and in severe cases, medications (e.g., low-dose propranolol) or deep brain stimulation may reduce tremor amplitude.

8. Dysarthria

Dysarthria refers to slurred or slowed speech caused by weakened or uncoordinated muscles used in talking. When the cerebellum can’t properly regulate the timing and strength of the tongue, lips, and vocal cords, speech becomes uneven—often described as “scanning” or “explosive.” Patients might speak in irregular bursts, have variable volume, or pause unexpectedly. Speech therapy is the cornerstone of management, teaching techniques to control breath support, pacing, and articulation. Augmentative communication devices can also aid those with severe dysarthria to ensure effective interaction.