Does Multiple System Atrophy Cause Muscle and Joint Pain?

Yes, severe muscle and joint pain is a common, though frequently under-discussed, symptom of Multiple System Atrophy (MSA). In fact, research shows that people living with MSA actually experience a heightened perception of pain compared to both healthy individuals and those with Parkinson’s disease ^[1]. If you are hurting, your pain is real, it is valid, and it is a known part of this condition.

While MSA heavily affects the autonomic nervous system, the motor symptoms it causes take a serious physical toll on the muscles, joints, and skeleton.

What Causes Muscle and Joint Pain in MSA?

The musculoskeletal pain associated with MSA is rarely caused by primary joint damage (like arthritis). Instead, it is usually driven by how the disease changes your muscle tone and body alignment ^[2][3][4]. The most common culprits include:

• Muscle Rigidity: Constant stiffness in the limbs and trunk forces muscles to work overtime, leading to deep, aching pain and joint strain.
• Dystonia: These are involuntary, sustained muscle contractions that can cause twisting or repetitive movements. Dystonia often causes cramping and sharp pains.
• Postural Deformities: MSA can cause the body to adopt abnormal postures that put immense stress on the spine, hips, and neck ^[2]. These may include:
  • Camptocormia: Severe forward bending of the torso.
  • Pisa Syndrome: Leaning heavily to one side.
  • Antecollis: A “dropped head” posture where the neck bends forward. In MSA, this may be partly due to a loss of muscle-controlling nerves in the neck, not just muscle spasms ^[5].

How is MSA Pain Managed?

Because MSA is complex, there is no single “magic pill” for the pain. Treating it requires a multidisciplinary approach focused on managing the symptoms causing the physical strain ^[6][7][8]. This often includes a movement disorder specialist, physical therapists, and sometimes specialized pain management or palliative care teams.

Physical and Occupational Therapy
Standard, targeted physical and occupational therapy is a cornerstone of MSA management ^[6][9]. A specialized physical therapist can help stretch rigid muscles, suggest supportive bracing or pillows for postural issues, and teach you how to move safely without over-straining your joints. Manual therapy—such as specialized massage or gentle, guided stretching—may also help relieve tight muscles, though the benefits are usually temporary.

Medication Adjustments
You might assume that drugs used for Parkinson’s disease, like Levodopa, would relieve muscle stiffness and the resulting pain. While Levodopa can help some motor symptoms, research shows it has limited effectiveness for dystonia-related pain in MSA and might actually worsen pain tolerance for some patients ^[1].

Instead, your doctor might explore antispasmodic medications (like baclofen) to reduce dystonia cramps, or standard nerve-pain medications. However, extreme caution is required: many muscle relaxants and pain medications can cause dizziness or further lower your blood pressure, which is particularly dangerous for MSA patients who already struggle with orthostatic hypotension (blood pressure drops when standing) ^[6].

Botulinum Toxin Injections
For localized, severe dystonia or dropped head (antecollis), doctors sometimes use botulinum toxin to temporarily paralyze the overactive muscles ^[6]. However, this must be approached very carefully. People with MSA are at a high risk for dysphagia (swallowing difficulties) and breathing issues; injecting botulinum toxin near the neck or throat can severely worsen these critical functions ^[10][11][12].