Parkinson’s Disease Guide
A guide to motor and nonmotor symptoms, clinical diagnosis, treatment options, and planning a safer daily life with Parkinson’s disease.
Contents
What is Parkinson’s disease?
Parkinson’s disease is a progressive nervous-system disorder. Loss of dopamine-producing cells in the substantia nigra affects smooth movement. Slowness, rigidity, resting tremor, and balance or walking problems are common, but not everyone has tremor. The disease is not contagious or an inevitable part of normal aging. Medicines and other causes of parkinsonism can produce similar findings, so one symptom cannot establish the diagnosis.
- Record movement that becomes slower or smaller, especially when it begins on one side.
- Note falls, freezing, medicine timing, and changes across the day.
- Bring a full medicine list, including nausea and mental-health medicines.
Motor and nonmotor symptoms
Smaller handwriting, reduced facial expression or arm swing, short steps, and difficulty turning can be motor signs. Constipation, reduced smell, sleep problems, depression, anxiety, pain, urinary symptoms, blood-pressure drops, and cognitive change can occur before or after movement symptoms. These features are not specific. For example, REM sleep behavior disorder may raise future Parkinson risk but does not prove that an individual will develop Parkinson’s disease.
Diagnosis and follow-up
Diagnosis is usually based on a detailed history and neurological examination; there is no single blood or imaging test that definitively diagnoses Parkinson’s disease. MRI and laboratory tests may investigate alternatives. DaT imaging can support evidence of dopaminergic loss in selected uncertain cases, but cannot distinguish Parkinson’s disease from every atypical parkinsonian disorder. Follow-up reviews movement, falls, swallowing, sleep, mood, cognition, blood pressure, and caregiver needs together.
Treatment and rehabilitation
No treatment currently removes Parkinson’s disease, but medicines, rehabilitation, and surgery in selected people can reduce symptoms. Levodopa is among the most effective motor treatments; timing and dose are adjusted to the person’s daily response. Abrupt withdrawal can cause serious deterioration. Deep brain stimulation may help selected motor fluctuations or tremor but does not correct balance, speech, cognition, or every nonmotor symptom. Exercise, gait and balance work, voice and speech therapy, swallowing assessment, and daily-task strategies can begin early.
| Area | Example plan |
|---|---|
| Medicine | Track timing, meals, benefit, and adverse effects |
| Movement | Strength, balance, larger movement, and gait practice |
| Communication/swallowing | Voice, speech, and safe-swallow assessment |
| Home safety | Freezing cues, lighting, and fall prevention |
Daily life and support
Regular physical activity can support function and quality of life; tailor it to cardiovascular health, fall risk, and on-off periods. Hallucinations, impulse-control change, severe daytime sleepiness, or sudden sleep episodes may be medicine-related and must be reported promptly, especially for driving safety. Constipation, orthostatic blood-pressure drops, and nutrition problems can be addressed by the team. Discussing future care preferences and caregiver support before a crisis can reduce uncertainty.
References
- Parkinson disease (opens in a new tab) — World Health Organization
- Parkinson’s Disease (opens in a new tab) — NIH/NINDS