The first signs of multiple system atrophy (MSA) are often not movement problems at all. Most people notice bladder issues, dizziness when standing up, or erectile dysfunction months or even years before the stiffness, tremor, or balance problems that eventually lead to a diagnosis. Symptoms typically appear around age 55, and because these early signs overlap with common conditions of aging, MSA is frequently misdiagnosed as Parkinson’s disease or a simple urological problem before the full picture emerges.
Bladder and Sexual Problems Often Come First
Lower urinary tract dysfunction is one of the earliest and most consistent signs. It usually starts as storage problems: waking up multiple times at night to urinate, sudden urgency, or episodes of incontinence. Over time, the opposite problem develops. The bladder muscle weakens, making it difficult to fully empty, and some people eventually need a catheter. Urodynamic testing has found that the bladder muscle underperforms in roughly 71% of women and 63% of men with MSA.
In men, erectile dysfunction often appears before any other symptom and can precede a diagnosis by several years. Because it’s so common in middle-aged and older men for unrelated reasons, it rarely raises a red flag on its own. When combined with new urinary urgency or lightheadedness, though, the pattern becomes more telling.
Drops in Blood Pressure When Standing
Orthostatic hypotension, a significant drop in blood pressure upon standing, is a hallmark early sign. The diagnostic threshold is a fall of at least 20 points systolic or 10 points diastolic within three minutes of going from lying down to standing. In practical terms, this feels like lightheadedness, tunnel vision, or near-fainting when you get out of bed or stand up from a chair. Some people describe it as a “graying out” of vision.
Severe cases involve drops of 30 or more systolic points, which can cause actual fainting. If you’ve started avoiding quick position changes or feel unsteady only when first standing, this is a symptom worth tracking. Measuring your blood pressure while lying down and then again after standing for two to three minutes can reveal a pattern you can share with a doctor.
Cold, Discolored Hands
A less well-known early sign is the “cold hand sign,” where the hands become cold, purplish or blue, and blanch white under pressure with slow circulatory return. This happens because the nerves controlling blood flow to the skin stop working properly, both in the brain’s vasomotor centers and in the peripheral nerves that regulate the blood vessels. People with MSA show measurably reduced skin blood flow and an abnormal response to warming compared with healthy adults or people with Parkinson’s disease. If your hands have become persistently cold and discolored in a way that’s new for you, especially alongside other autonomic symptoms, it’s worth mentioning.
Two Patterns of Movement Problems
MSA splits into two subtypes based on which movement symptoms dominate, though both share the autonomic problems described above.
MSA-P (Parkinsonian Type)
This subtype looks a lot like Parkinson’s disease: slowness of movement, stiffness, and difficulty with balance. A few features set it apart early on. The stiffness and slowness tend to affect both sides of the body roughly equally, whereas Parkinson’s disease typically starts on one side. The classic resting tremor of Parkinson’s is rare in MSA-P. Instead, some people develop a jerky, irregular tremor that shows up when holding a posture or reaching for something. Falls and postural instability also appear earlier than they would in typical Parkinson’s. Perhaps the biggest clue is that standard Parkinson’s medications provide little or no lasting benefit.
MSA-C (Cerebellar Type)
This subtype centers on coordination and balance. Early signs include an unsteady, wide-based walk, as if you’ve had too much to drink. Speech may become slurred, slow, or unusually soft. Fine motor tasks that require coordination, like buttoning a shirt or writing, become harder. Some people also develop abnormal eye movements. These cerebellar signs can be subtle at first, mistaken for general “getting older” clumsiness, but they progress steadily.
Sleep Disruptions That May Precede Everything
REM sleep behavior disorder (RBD) is now recognized as a prodromal sign of MSA and related diseases. People with RBD physically act out their dreams: punching, kicking, shouting, or falling out of bed during sleep. This happens because the normal muscle paralysis that accompanies dreaming sleep fails. RBD can appear years before any waking symptoms of MSA develop. The vast majority of people diagnosed with RBD through a sleep study will eventually show signs of a neurodegenerative condition like MSA, Parkinson’s disease, or dementia with Lewy bodies, often after a prolonged interval.
A bed partner is usually the first to notice. If you’ve been told you thrash, talk loudly, or seem to fight in your sleep, this is a meaningful early warning sign, especially if combined with any of the autonomic symptoms above.
Breathing Sounds During Sleep
Stridor, a high-pitched, harsh breathing sound caused by the vocal cords failing to open properly, is a distinctive feature of MSA. It typically occurs during sleep and may sound like strained wheezing or a whistling noise on each breath in. About 4% to 5% of people with MSA develop stridor as their very first symptom. The vocal cords can appear normal during a daytime exam, with the dysfunction only becoming apparent during sleep studies, which makes it easy to miss.
Stridor that appears early in the disease, within the first three years of other symptoms, is an independent risk factor for shorter survival. If a sleep partner notices you making a new, strained breathing sound at night, it deserves prompt evaluation.
How MSA Differs From Parkinson’s Disease
Because so many early MSA symptoms resemble Parkinson’s, the distinction matters. Several “red flags” point toward MSA rather than Parkinson’s:
- Faster progression. Most people with MSA need a cane or walker within a few years of symptom onset, a timeline that would be unusual for Parkinson’s.
- Poor medication response. Parkinson’s medications either don’t help or stop helping quickly. This is one of the strongest clinical clues.
- Early autonomic failure. Significant blood pressure drops, severe bladder dysfunction, or erectile dysfunction appearing at the same time as or before movement symptoms is more typical of MSA.
- Symmetrical stiffness. Parkinson’s disease usually starts noticeably worse on one side. MSA tends to affect both sides more equally from the beginning.
- Early falls. Moderate to severe postural instability in the first years of illness is uncommon in Parkinson’s but common in MSA.
Getting to a Diagnosis
MSA is diagnosed primarily through clinical evaluation. The current diagnostic framework, established by the Movement Disorder Society in 2022, requires a combination of autonomic dysfunction plus either poorly levodopa-responsive parkinsonism or a cerebellar syndrome, along with supportive features like rapid progression, early postural instability, or specific MRI findings. On brain imaging, doctors look for shrinkage in structures like the putamen, pons, and cerebellum, and characteristic patterns such as the “hot cross bun” sign in the brainstem.
Because no single test confirms MSA in life, diagnosis is often a process of elimination. Many people are initially told they have Parkinson’s disease, and the diagnosis shifts to MSA as the pattern of symptoms, medication response, and imaging findings becomes clearer. If you’re experiencing a combination of the autonomic, movement, and sleep symptoms described here, bringing them all to a neurologist’s attention as a cluster, rather than addressing each one separately with different specialists, can significantly shorten the path to an accurate diagnosis.